WO2017016478A1 - 一种lte系统的用户流量提升方法、装置及基站 - Google Patents

一种lte系统的用户流量提升方法、装置及基站 Download PDF

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Publication number
WO2017016478A1
WO2017016478A1 PCT/CN2016/091875 CN2016091875W WO2017016478A1 WO 2017016478 A1 WO2017016478 A1 WO 2017016478A1 CN 2016091875 W CN2016091875 W CN 2016091875W WO 2017016478 A1 WO2017016478 A1 WO 2017016478A1
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Prior art keywords
power
lte cell
user equipment
unit
user
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PCT/CN2016/091875
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English (en)
French (fr)
Inventor
谭永龙
孙志远
刘蕊
陈继勋
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中兴通讯股份有限公司
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Publication of WO2017016478A1 publication Critical patent/WO2017016478A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets

Definitions

  • the present application relates to, but is not limited to, the field of communication technologies, and in particular, to a method, an apparatus, and a base station for improving user traffic of an LTE system.
  • LTE Long Term Evolution
  • 3GPP 3rd Generation Partnership Project
  • Standards have become the mainstream standard for the fourth generation of mobile phone mobile communication standards (4G).
  • wireless networks of the same carrier often have multiple network standards. Different network standards can share the same radio unit (RU), and users are not balanced in different network formats. During the day, users use more code-based multiple access (CDMA) voices, and more LTE data services are used at night.
  • LTE user equipment User Equipment, UE
  • LTE data services it is often subject to LTE.
  • the power limitation of the cell cannot give the UE of the cell, especially the edge UE of the cell, higher power, so that the UE cannot achieve a higher signal to noise ratio, and the UE transmission rate cannot be improved; another case, such as LTE cell configuration.
  • the maximum power, but the configured maximum power does not reach the rated maximum power of the RU. At this time, the RU has the remaining idle power available, but cannot be used for the user traffic increase in the cell.
  • the maximum transmit power of the LTE cell is fixed.
  • the rate of the UE is fixed.
  • the embodiment of the present invention provides a method, a device, and a base station for improving user traffic of an LTE system, and improving the received signal to noise ratio of the user equipment in the cell by increasing the transmit power of the cell without changing the coverage of the LTE cell. Increase the traffic of user devices.
  • a method for improving user traffic of an LTE system including:
  • the LTE cell is allocated additional power through the RU.
  • the downlink data is transmitted using the additional power.
  • the determining whether an LTE cell needs to allocate additional power based on the rated power of the LTE cell includes:
  • PDSCH EPREs resource elements
  • the LTE cell has a user equipment of a preset modulation mode.
  • MCS modulation and coding policy
  • the LTE cell needs to allocate additional power based on the rated power of the LTE cell.
  • the allocating additional power to the LTE cell by using the RU includes:
  • the idle power is allocated to the LTE cell that needs to allocate additional power according to a preset amount.
  • the result of the determination is that there is another cell other than the LTE cell that needs to allocate additional power corresponding to the RU, then a power request is initiated to the other cell, and after the other cells release power, the function is released.
  • the power is allocated to the LTE cell that needs to allocate additional power according to the preset amount.
  • the method further includes: allocating the idle power according to the preset amount to After the LTE cell that needs to allocate additional power, the allocated idle power is marked.
  • the transmitting the downlink data by using the additional power includes:
  • Obtaining a reference signal of the LTE cell where the user equipment is located if the signal strength of the LTE cell in which the user equipment is located in the Q1 is smaller than the signal strength of the neighboring cell of the LTE cell where the user equipment is located.
  • the maximum value of the difference between the received power RSRP and the RSRP of the neighboring cell of the LTE cell where the user equipment is located and determines whether the maximum value is greater than a preset threshold.
  • the method further includes:
  • the difference between the rated power and the used power of the LTE cell is obtained, and the difference is compared with the additional power. Plus, the available power of the LTE cell is obtained.
  • the available power is allocated one by one according to the preset power allocation requirement and according to the order of the user equipment in the Q2. User equipment.
  • the method further includes preferentially allocating a location of the resource block RB of the user equipment that has been boosted when the additional power is allocated to the user equipment one by one.
  • the location of the resource block RB of the user equipment that preferentially allocates the boosted power includes:
  • the RB value of the user equipment in the Q2 is allocated from a small location to a large allocation according to the order of arrangement of the user equipments in the Q2.
  • the RB value of the user equipment in the Q2 is allocated from a large position to a small size according to the order of arrangement of the user equipments in the Q2.
  • the RB value of the user equipment in the Q2 is allocated from the intermediate position according to the order of arrangement of the user equipments in the Q2.
  • the sending the downlink data by using the additional power further includes:
  • ⁇ A0 and ⁇ B0 Obtaining current ⁇ A and ⁇ B of the LTE cell, denoted as ⁇ A0 and ⁇ B0, where ⁇ A represents data subcarrier power and pilot subcarrier power of an OFDM symbol without pilot Ratio, the ⁇ B represents the ratio of the data subcarrier power of the piloted OFDM symbol to the pilot subcarrier power.
  • the ⁇ A and ⁇ B are successively increased, and ⁇ A and ⁇ B after the kth increase are denoted as ⁇ Ak and ⁇ Bk, where k is a positive integer.
  • ⁇ B(k-1) value transmits downlink data, where P( ⁇ A(k-1), ⁇ B(k-1)) indicates that the LTE cell takes ⁇ A as value ⁇ A(k-1), and ⁇ B takes The value of the boost is the value of ⁇ B(k-1).
  • the method further includes:
  • a user traffic enhancement device for an LTE system includes: a determination module, an allocation module, and an application module.
  • the determining module is configured to determine whether an LTE cell needs to be rated in the LTE cell Additional power is allocated on a power basis.
  • the allocation module is configured to allocate additional power to the LTE cell through the radio unit RU when additional power needs to be allocated.
  • the application module is configured to transmit downlink data by using the additional power.
  • the determining module includes: a first determining unit, a second determining unit, a third determining unit, and a first determining unit.
  • the determining module determines whether an LTE cell needs to allocate additional power based on the rated power of the LTE cell, including:
  • the first determining unit is configured to determine whether a sum of PDSCH EPREs of the LTE cell exceeds a preset power threshold.
  • the second determining unit is configured to determine whether the LTE cell has a preset modulation mode if the result of the first determining unit is that the sum of the PDSCH EPREs of the LTE cell exceeds a preset power threshold.
  • the third determining unit is configured to determine, if the determining result of the second determining unit is that the LTE cell has the user equipment of the preset modulation mode, determine whether the MCS value of the user equipment in the preset modulation mode is Less than the preset threshold.
  • the first determining unit is configured to determine that the LTE cell needs to be in the LTE cell if the MCS value of the user equipment in the preset modulation mode is less than a preset threshold. Additional power is allocated based on the rated power.
  • the allocation module includes: a detecting unit, a first allocating unit, a fourth judging unit, and a second allocating unit.
  • the allocating module allocates additional power to the LTE cell by using the radio unit RU:
  • the detecting unit is configured to detect whether there is idle power in the RU where the LTE cell needs to allocate additional power.
  • the first allocating unit is configured to allocate the idle power to the LTE cell that needs to allocate additional power according to a preset amount when the detecting unit detects that the RU has idle power.
  • the fourth determining unit is configured to: when the detecting unit detects that the RU does not have idle power, determine whether there is another cell other than the LTE cell that needs to allocate additional power corresponding to the RU .
  • the second allocation unit is configured to: if the determination result of the fourth determining unit is that there is another cell other than the LTE cell that needs to allocate additional power corresponding to the RU, then to the other cell After the power request is initiated, and after the other cells release power, the released power is allocated to the LTE cell that needs to allocate additional power according to the preset amount.
  • the allocating module further includes: a marking unit.
  • the marking unit is configured to mark the allocated idle power after the first allocation unit allocates the idle power according to the preset amount to the LTE cell that needs to allocate additional power.
  • the application module includes: a searching unit, a fifth determining unit, a sixth determining unit, a second obtaining unit, and an allocating unit.
  • the sending, by the application module, the downlink data by using the additional power includes:
  • the fifth determining unit is configured to determine whether the signal strength of the LTE cell where the user equipment is located in the Q1 is smaller than the signal strength of the neighboring area of the LTE cell where the user equipment is located.
  • the sixth determining unit is configured to: if the determining result of the fifth determining unit is that the signal strength of the LTE cell where the user equipment is located in the Q1 is smaller than the signal of the neighboring area of the LTE cell where the user equipment is located The maximum value of the difference between the reference signal received power RSRP of the LTE cell in which the user equipment is located and the RSRP of the neighboring cell of the LTE cell where the user equipment is located is obtained, and it is determined whether the maximum value is greater than Preset threshold.
  • the allocating unit is configured to allocate the available power to the user equipment one by one according to a preset power allocation requirement, and according to the order of arrangement of user equipments in the Q2, and utilize the allocation for the user equipment. Power sends downlink data to the user equipment.
  • the application module further includes: an available power acquiring unit and a triggering unit.
  • the available power obtaining unit is configured to acquire the rated power and the used power of the LTE cell after the second acquiring unit adds the user equipment to the second user set indicating the user queue that needs to be boosted. And subtracting the difference from the additional power to obtain available power of the LTE cell.
  • the available power obtaining unit is further configured to: when transmitting downlink data to the user equipment by using power allocated for the user equipment, triggering the allocation unit according to a preset power allocation requirement, and according to the Q2 The order of the user equipments is allocated to the user equipment one by one.
  • the application module further includes: a location allocation unit.
  • the location allocation unit is configured to preferentially allocate the location of the resource block RB of the user equipment with the boosted power when the allocation subunit allocates the available power to the user equipment one by one.
  • the location allocation unit preferentially allocates the location of the resource block RB of the user equipment that has increased power, including:
  • the RB value of the user equipment in the Q2 is allocated from a small location to a large allocation according to the order of arrangement of the user equipments in the Q2.
  • the RB value of the user equipment in the Q2 is allocated from a large position to a small size according to the order of arrangement of the user equipments in the Q2.
  • the RB value of the user equipment in the Q2 is allocated from the middle according to the order of arrangement of the user equipments in the Q2.
  • the application module further includes: a third acquiring unit, an increasing unit, and a lifting unit.
  • the sending, by the application module, the downlink data by using the additional power further includes:
  • the third acquiring unit is configured to acquire current ⁇ A and ⁇ B of the LTE cell, denoted as ⁇ A0, ⁇ B0, where the ⁇ A represents data subcarrier power and pilot subcarrier power of the OFDM symbol without pilot Ratio, the ⁇ B represents the ratio of the data subcarrier power of the piloted OFDM symbol to the pilot subcarrier power.
  • the increasing unit is configured to sequentially increase the ⁇ A and ⁇ B according to the setting rules of ⁇ A and ⁇ B, and record ⁇ A and ⁇ B of the kth increase as ⁇ Ak and ⁇ Bk, where k is positive Integer.
  • the lifting unit is configured to when P( ⁇ Ak, ⁇ Bk) is greater than a power value of the additional power and P( ⁇ A(k-1), ⁇ B(k-1)) is less than or equal to a power value of the additional power, Transmitting downlink data according to the ⁇ A(k-1), ⁇ B(k-1) values, where P( ⁇ A(k-1), ⁇ B(k-1)) indicates that the LTE cell takes ⁇ A as ⁇ A(k) -1), and ⁇ B takes the value of the boosted power when ⁇ B(k-1).
  • the application module further includes: a fourth acquiring unit.
  • the fourth acquiring unit is configured to acquire, after the third acquiring unit acquires the current ⁇ A and ⁇ B of the LTE cell, a difference between the rated power and the used power of the LTE cell, and the difference is obtained. Adding to the additional power to obtain the available power of the LTE cell.
  • the fourth obtaining unit is further configured to trigger the lifting unit when P( ⁇ Ak, ⁇ Bk) is greater than the available power when transmitting downlink data according to the ⁇ A(k-1), ⁇ B(k-1) values When the power value and P( ⁇ A(k-1), ⁇ B(k-1)) are less than or equal to the power value of the available power, according to the ⁇ A(k-1), ⁇ B(k-1) value is sent down. data.
  • a base station includes the user traffic enhancement device of the LTE system described above.
  • a computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the user traffic enhancement method of the LTE system.
  • the LTE cell with the transmit power has reached or exceeded the power threshold, that is, the LTE cell that needs to allocate additional power based on the rated power, allocates additional power to the LTE cell through the RU, and sends the power by using the rated power.
  • the downlink data is used to improve the downlink transmit power of the user equipment in the LTE cell, thereby improving the traffic of the user equipment. Therefore, the solution of the embodiment of the present invention does not need to change the coverage of the LTE cell, and improves the LTE by the related art.
  • the transmit power of the cell is used to improve the received signal to noise ratio of the user equipment in the LTE cell, thereby improving the traffic of the user equipment.
  • FIG. 1 is a schematic flowchart of a method for improving user traffic of an LTE system according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of a user traffic improvement apparatus of an LTE system according to an embodiment of the present invention
  • FIG. 3 is a block diagram showing the structure of a determining module according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing the structure of an allocation module according to an embodiment of the present invention.
  • FIG. 5 is a block diagram showing the structure of an application module according to an embodiment of the present invention.
  • a method for improving user traffic of an LTE system is provided. First, determining whether an LTE cell needs to allocate additional power based on a rated power of the LTE cell; and then, when needed When the extra power is allocated, the LTE cell is allocated additional power through the radio unit RU; finally, the downlink data is transmitted by using the extra power.
  • the method for improving the user traffic of the LTE system in the embodiment of the present invention improves the received signal to noise ratio of the user equipment in the LTE cell by allocating additional power to the LTE cell, and then increasing the transmit power of the LTE cell, thereby improving the user.
  • the traffic of the device improves the received signal to noise ratio of the user equipment in the LTE cell by allocating additional power to the LTE cell, and then increasing the transmit power of the LTE cell, thereby improving the user.
  • the traffic of the device improves the received signal to noise ratio of the user equipment in the LTE cell by allocating additional power to the LTE cell, and then increasing the transmit power of the LTE cell, thereby improving the user.
  • the traffic of the device improves the received signal to noise ratio of the user equipment in the LTE cell by allocating additional power to the LTE cell, and then increasing the transmit power of the LTE cell, thereby improving the user.
  • the method includes steps S11-S13:
  • Step S11 Determine whether an LTE cell needs to allocate additional power based on the rated power of the LTE cell.
  • the LTE cell is configured with the initial maximum power, that is, the rated power.
  • the user equipment in the LTE cell especially the edge user equipment of the cell, is often limited by the power of the LTE cell when there are many LTE services. That is, when the transmit power of the LTE cell has reached or preset to exceed the power threshold, the LTE cell needs to allocate additional power based on the rated power in this case.
  • the LTE cell determines by two detection conditions whether the LTE cell requires additional power. That is, detecting whether the sum of the PDSCH EPREs of the LTE cell exceeds a preset power threshold, and the LTE cell has a user equipment of a preset modulation mode, and the MCS of the user equipment in the debug mode is less than a preset threshold, for example, MCS ⁇ 5, Then the LTE cell satisfies the condition that additional power is required.
  • the preset modulation mode refers to a quadrature phase shift keying (QPSK) modulation mode
  • the preset power threshold is a preset maximum power of the LTE cell
  • the preset threshold refers to a pre-experiment or experience.
  • the threshold value of the MSC of the user equipment of the modulation mode when the LTE cell in which the user equipment of the obtained QPSK modulation mode is located needs to accumulate additional power.
  • Step S12 When additional power needs to be allocated, the LTE cell is allocated additional power through the RU.
  • step S12 includes:
  • the idle power is allocated to the LTE cell that needs to allocate additional power according to a preset amount.
  • the result of the determination is that there is another cell other than the LTE cell that needs to allocate additional power corresponding to the RU, then a power request is initiated to the other cell, and after the other cells release power, the function is released.
  • the power is allocated to the LTE cell that needs to allocate additional power according to the preset amount.
  • the idle power is allocated to the preset amount
  • the preset amount is a power value that is allocated to the LTE cell as idle power, which is set according to an actual situation.
  • the allocated idle power may be marked to be performed, so that the base station can control that other LTE cells cannot continue to use the marked idle power.
  • the LTE cell when the LTE cell has used the idle power on the RU, but the new idle power is available later, the LTE cell can additionally use the added idle power, and the additional method can also be controlled by the base station to allocate for each LTE cell. .
  • the base station may choose to reduce the power of other cells on the same RU by writing a database or signaling, or directly shut down other idle cells, and allocate it to the LTE cell that needs to allocate additional power, so After the other cells release power, the LTE cell that needs to allocate additional power may use part or all of the power released by the cell.
  • Step S13 The downlink data is sent by using the extra power.
  • the LTE cell may use the obtained additional power to transmit downlink data, that is, improve the scope of the cell. Traffic within the user device.
  • the following method may be adopted:
  • the LTE cell in which the user equipment is located in the Q1 is smaller than the signal strength of the neighboring cell of the LTE cell in which the user equipment is located
  • the LTE cell in which the user equipment is located is acquired.
  • the maximum value of the difference between the reference signal received power RSRP and the RSRP of the neighboring cell of the LTE cell in which the user equipment is located and determines whether the maximum value is greater than a preset threshold.
  • UE1 to UEn represent different user equipments
  • n is a positive integer
  • n ⁇ m is a positive integer
  • the additional power is allocated to the user equipment one by one, and the power allocated to the user equipment is used to the user The device sends downlink data.
  • unused power in the rated power range may also be used to increase the traffic of user equipments in the cell.
  • the method further includes: after adding the user equipment to a second user set indicating a user queue that needs to be boosted, acquiring a difference between a rated power and a used power of the LTE cell, and The difference is added to the additional power to obtain the available power of the LTE cell; when the downlink data is sent to the user equipment by using the power allocated to the user equipment, according to a preset power allocation requirement, and according to The order of the user equipments in the Q2 is allocated to the user equipment one by one.
  • the power boost value of the user equipment in each Q2 set can be obtained according to the foregoing method, where ⁇ P(j) represents the power boost value of the jth user equipment in the Q2 set, and P represents the available power, where j is a positive integer, then the boost power of all user equipments in all Q2 sets must be less than the available power, ie
  • the (SINR) value will be increased accordingly to increase the traffic of the user equipment.
  • the downlink transmission power of the user equipment may be improved, causing neighboring area interference. Therefore, while improving the downlink throughput of a part of the edge user equipment (that is, the user equipment using the QPSK modulation scheme), the phase of the resource block (RB) of the user equipment with the boosted power can be preferentially allocated to reduce the phase. Interference from neighboring cells.
  • the method of reducing interference may include:
  • the RB value of the user equipment in the Q2 is allocated from a small location to a large allocation according to the order of arrangement of the user equipments in the Q2.
  • the RB value of the user equipment in the Q2 is allocated from a large position to a small size according to the order of arrangement of the user equipments in the Q2.
  • the RB value of the user equipment in the Q2 is allocated from the intermediate position according to the order of arrangement of the user equipments in the Q2.
  • the Q2 set in the LTE cell A includes three user equipments UE1, UE2, and UE3.
  • the user equipment of the Q2 set needs to be first.
  • the PCI of the corresponding LTE cell A performs the modulo 3 operation. If the calculation result is 0, the RB allocation rule for UE1, UE2, and UE3 is from the small RB location to the large location allocation, and after the Q2 queue UE is allocated. Then, RB allocation is performed on other UEs in the cell A.
  • the location allocation of the RB of the user equipment in the Q2 set in the LTE cell B is adopted.
  • the RB of the boosted user equipment in the process of increasing the traffic of the user equipment in the Q2 set in the LTE cell A and the traffic of the user equipment in the Q2 set in the LTE cell B, when the location is allocated to the small location The positions are staggered from each other, thereby achieving the purpose of reducing neighborhood interference.
  • the following method may be used to enable the base station to use the additional power to transmit downlink data, thereby improving the traffic of the user equipment in the LTE cell of the base station:
  • the current ⁇ A and ⁇ B of the LTE cell are obtained, denoted as ⁇ A0 and ⁇ B0, where the ⁇ A represents the ratio of the data subcarrier power of the OFDM symbol without the pilot and the pilot subcarrier power, and the ⁇ B indicates that there is The ratio of the data subcarrier power of the pilot OFDM symbol to the pilot subcarrier power.
  • the ⁇ A and ⁇ B are successively increased, and the ⁇ A and ⁇ B after the kth increase are denoted as ⁇ Ak and ⁇ Bk, where k is a positive integer.
  • the method before the acquiring the current ⁇ A and ⁇ B of the LTE cell, the method further includes:
  • the base station side uses ⁇ A(k-1), ⁇ B(k-1) values to boost power, and uses the system information block (SIB) of the base station to transmit a new parameter ⁇ A(k) in the form of a broadcast message.
  • SIB system information block
  • -1), ⁇ B(k-1) is sent to the user equipment of the cell, so that the user equipment parses the acquired parameters ⁇ A(k-1), ⁇ B(k-1), and uses the benchmark obtained by the analysis to receive the downlink data. , thereby increasing the traffic of the entire community user.
  • a user traffic upgrading apparatus of an LTE system is further provided.
  • the apparatus 200 includes: a determining module 201, an allocating module 202, and an application module 203.
  • the determining module 201 is configured to determine whether an LTE cell needs to allocate additional power based on the rated power of the LTE cell.
  • the allocation module 202 is configured to allocate additional power to the LTE cell through the RU when additional power needs to be allocated.
  • the application module 203 is configured to transmit downlink data by utilizing the additional power.
  • the determining module 201 includes: a first determining unit 2011, a second determining unit 2012, a third determining unit 2013, and a first determining unit 2014.
  • the first determining unit 2011 is configured to determine whether the sum of the PDSCH EPREs of the LTE cell exceeds a preset power threshold.
  • the second determining unit 2012 is configured to determine whether the LTE cell has a preset modulation mode if the result of the first determining unit 2011 is that the sum of the PDSCH EPREs of the LTE cell exceeds a preset power threshold. User equipment.
  • the third determining unit 2013 is configured to determine whether the MCS value of the user equipment in the preset modulation mode is determined if the judgment result of the second determining unit 2012 is that the user equipment of the preset modulation mode exists in the LTE cell Less than the preset threshold.
  • the first determining unit 2014 is configured to determine that the LTE cell needs to be in the LTE cell if the MCS value of the user equipment in the preset modulation mode is less than a preset threshold. Additional power is allocated based on the rated power.
  • the allocation module 202 includes: a detecting unit 2021, a first allocating unit 2022, a fourth determining unit 2023, and a second allocating unit 2024.
  • the allocating module allocates additional power to the LTE cell by using the radio unit RU:
  • the detecting unit 2021 is configured to detect whether there is idle power in the RU where the LTE cell needs to allocate additional power.
  • the first allocating unit 2022 is configured to, when the detecting unit 2021 detects that the RU has idle power, allocate the idle power to the LTE cell that needs to allocate additional power according to a preset amount.
  • the fourth determining unit 2024 is configured to: when the detecting unit 2021 detects that the RU does not have idle power, determine whether there is another cell other than the LTE cell that needs to allocate additional power corresponding to the RU .
  • the second allocating unit 2025 is configured to: if the determination result of the fourth determining unit 2034 is that there is another cell other than the LTE cell that needs to allocate additional power corresponding to the RU, then to the other cell After the power request is initiated, and after the other cells release power, the released power is allocated to the LTE cell that needs to allocate additional power according to the preset amount.
  • the distribution module 202 further includes: a marking unit 2023.
  • the marking unit 2023 is configured to mark the allocated idle power after the first allocation unit 2022 allocates the idle power according to the preset amount to the LTE cell that needs to allocate additional power.
  • the application module 203 includes: a searching unit 2032, a fifth determining unit 2033, a sixth determining unit 2034, a second obtaining unit 2035, and an allocating unit 2036.
  • the fifth determining unit 2033 is configured to determine whether the signal strength of the LTE cell where the user equipment is located in the Q1 is smaller than the signal strength of the neighboring cell of the LTE cell where the user equipment is located.
  • the sixth judging unit 2034 is configured to: if the judgment result of the fifth judging unit 2053 is that the signal strength of the LTE cell where the user equipment is located in the Q1 is smaller than the signal of the neighboring cell of the LTE cell where the user equipment is located The maximum value of the difference between the reference signal received power RSRP of the LTE cell in which the user equipment is located and the RSRP of the neighboring cell of the LTE cell where the user equipment is located is obtained, and it is determined whether the maximum value is greater than Preset threshold.
  • the allocating unit 2036 is configured to allocate the available power to the user equipment one by one according to the preset power allocation requirement, and according to the order of the user equipments in the Q2, and utilize the power allocated for the user equipment. Sending downlink data to the user equipment.
  • the application module 203 further includes: an available power acquiring unit and a triggering unit 2031.
  • the available power obtaining unit 2031 is configured to acquire the difference between the rated power and the used power of the LTE cell after the second acquiring unit adds the user equipment to the second user set indicating the user queue that needs to be boosted. a value and adding the difference to the additional power to obtain The available power of the LTE cell.
  • the available power obtaining unit is further configured to: when transmitting downlink data to the user equipment by using power allocated for the user equipment, triggering the allocating unit 2056 according to a preset power allocation requirement, and according to the Q2 The order of the user equipments is allocated to the user equipment one by one.
  • the application module 203 further includes: a location allocation unit.
  • the location allocating unit 2037 is configured to preferentially allocate the location of the resource block RB of the user equipment with the boosted power when the allocation subunit 2036 allocates the available power to the user equipment one by one.
  • the location allocation unit 2037 preferentially allocates the location of the resource block RB of the user equipment that has increased power, including:
  • the RB value of the user equipment in the Q2 is allocated from a small location to a large allocation according to the order of arrangement of the user equipments in the Q2.
  • the RB value of the user equipment in the Q2 is allocated from a large position to a small size according to the order of arrangement of the user equipments in the Q2.
  • the RB value of the user equipment in the Q2 is allocated from the middle according to the order of arrangement of the user equipments in the Q2.
  • the application module 203 further includes: a third obtaining unit 2039, an increasing unit 20310, and a lifting unit 20311.
  • the sending, by the application module, the downlink data by using the additional power further includes:
  • the third obtaining unit 2039 is configured to acquire the current ⁇ A and ⁇ B of the LTE cell, denoted as ⁇ A0, ⁇ B0, where the ⁇ A represents the ratio of the data subcarrier power of the OFDM symbol without the pilot and the pilot subcarrier power.
  • the ⁇ B represents the ratio of the data subcarrier power of the piloted OFDM symbol to the pilot subcarrier power.
  • the increasing unit 20310 is configured to sequentially increase the ⁇ A and ⁇ B according to the setting rules of ⁇ A and ⁇ B, and record the ⁇ A and ⁇ B after the kth increase as ⁇ Ak and ⁇ Bk, where k is A positive integer.
  • the lifting unit 20311 is configured to: when P( ⁇ Ak, ⁇ Bk) is greater than a power value of the additional power and P( ⁇ A(k-1), ⁇ B(k-1)) is less than or equal to a power value of the additional power, according to
  • the ⁇ A(k-1), ⁇ B(k-1) values transmit downlink data, where P( ⁇ A(k-1), ⁇ B(k-1)) indicates that the LTE cell has a value of ⁇ A (k-) 1), and ⁇ B takes the value of the boosted power when ⁇ B(k-1).
  • the application module 203 further includes: a fourth acquiring unit.
  • the fourth obtaining unit 2038 is configured to acquire, after the third acquiring unit acquires the current ⁇ A and ⁇ B of the LTE cell, a difference between the rated power and the used power of the LTE cell, and compare the difference with The additional power is added to obtain the available power of the LTE cell.
  • the fourth acquiring unit is further configured to trigger, when the downlink data is sent according to the ⁇ A(k-1), ⁇ B(k-1) values, the lifting unit 20511 when P( ⁇ Ak, ⁇ Bk) is greater than the available When the power value of the power and P( ⁇ A(k-1), ⁇ B(k-1)) is less than or equal to the power value of the available power, the value is transmitted according to the ⁇ A(k-1), ⁇ B(k-1) value. Downstream data.
  • a base station including the user traffic lifting apparatus of the LTE system described above.
  • a computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the user traffic enhancement method of the LTE system.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the LTE cell with the transmit power has reached or exceeded the power threshold, that is, the LTE cell that needs to allocate additional power based on the rated power, allocates additional power to the LTE cell through the RU, and sends the power by using the rated power.
  • the downlink data is used to improve the downlink transmit power of the user equipment in the LTE cell, thereby improving the traffic of the user equipment.
  • the solution of the LTE cell does not need to change the coverage of the LTE cell, and improves the received signal-to-noise ratio of the user equipment in the LTE cell by increasing the transmit power of the LTE cell, thereby improving the traffic of the user equipment.

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Abstract

本申请提供了一种LTE系统的用户流量提升方法、装置及基站，该方法包括：判断一LTE小区是否需要在LTE小区的额定功率基础上分配额外功率；当需要分配额外功率时，通过射频单元RU为LTE小区分配额外功率；利用额外功率发送下行数据。

Description

一种LTE系统的用户流量提升方法、装置及基站 技术领域
本申请涉及但不限于通信技术领域，尤其涉及一种LTE系统的用户流量提升方法、装置及基站。
背景技术
随着无线通信技术的发展，用户使用数据业务越来越多，长期演进(Long Term Evolution，LTE)作为第三代合作伙伴计划(The 3rd Generation Partnership Project，3GPP)组织制定的数据业务的无线承载标准，已经成为第四代移动电话行动通信标准(4G)的主流标准。
在4G时代，同一个运营商的无线网络往往有多种网络制式并存，不同的网络制式可以共享同一个射频单元(Radio Unit，RU)，用户在不同网络制式下的使用是不均衡的，比如白天用户使用码分多址(CDMA)语音较多，晚上使用LTE数据业务较多，当在同一个LTE小区内的LTE用户设备(User Equipment，UE)使用LTE数据业务较多时，往往会受到LTE小区的功率限制，不能给小区的UE，特别是小区的边缘UE更高的功率，从而不能让UE达到更高信噪比，也就不能提升UE传输速率；另一种情况，比如LTE小区配置了最大功率，但配置的最大功率未达到RU的额定最大功率，这时RU有剩余空闲功率可用，但不能用于小区内用户流量的提升。
因此，相关技术中，LTE小区的最大发射功率是固定的，在小区UE较多时，很难再有额外功率来提高基站发射功率，从而不能通过提高基站发射功率来提升UE接收信噪比来提升UE的速率。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供了一种LTE系统的用户流量提升方法、装置及基站，不改变LTE小区覆盖的情况下，通过提高小区发射功率，来提升该小区下的用户设备的接收信噪比，进而提升用户设备的流量。
一种LTE系统的用户流量提升方法，包括：
判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率。
当需要分配额外功率时，通过RU为所述LTE小区分配额外功率。
利用所述额外功率发送下行数据。
可选地，所述判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率包括：
判断所述LTE小区的物理下行共享信道的资源要素(PDSCH EPRE)之和是否超过预设功率门限值。
如果判断结果为所述LTE小区的PDSCH EPRE之和超过预设功率门限值，则判断所述LTE小区是否存在预设调制方式的用户设备。
如果判断结果为所述LTE小区存在所述预设调制方式的用户设备，则判断所述预设调制方式的用户设备的调制与编码策略(MCS)值是否小于预设阈值。
如果判断结果为所述预设调制方式的用户设备的MCS值小于预设阈值，则判定所述LTE小区需要在所述LTE小区的额定功率基础上分配额外功率。
可选地，所述通过RU为所述LTE小区分配额外功率包括：
检测需要分配额外功率的所述LTE小区所在的RU是否存在空闲功率。
当所述RU存在空闲功率时，将所述空闲功率按照预设量值分配给所述需要分配额外功率的LTE小区。
当所述RU不存在空闲功率时，判断是否存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区。
如果判断结果为存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区，则向所述其他小区发起功率申请，并在所述其他小区释放功率后，将释放的功率按照所述预设量值分配给所述需要分配额外功率的LTE小区。
可选地，所述方法还包括：在将所述空闲功率按照所述预设量值分配给 所述需要分配额外功率的LTE小区之后，标记已分配的所述空闲功率。
可选地，所述利用所述额外功率发送下行数据包括：
查找所述LTE小区中的预设调制方式的用户设备，并加入第一用户集合中，记为Q1＝{UE1，UE2，…，UEm}，其中，UE1～UEm表示不同的用户设备，且m为正整数。
判断所述Q1中的用户设备所处的LTE小区的信号强度是否小于所述用户设备所处的LTE小区的邻区的信号强度。
如果判断结果为所述Q1中的用户设备所处的LTE小区的信号强度小于所述用户设备所处的LTE小区的邻区的信号强度，则获取所述用户设备所处的LTE小区的参考信号接收功率RSRP与所述用户设备所处的LTE小区的邻区的RSRP的差值中的最大值，并判断所述最大值是否大于预设门限值。
当所述最大值大于所述预设门限值时，将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中，记为Q2＝{UE1，UE2，…，UEn}，其中，UE1～UEn表示不同的用户设备，n为正整数，且n≦m。
依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述额外功率逐个分配给所述用户设备，并利用为所述用户设备分配的功率向所述用户设备发送下行数据。
可选地，所述方法还包括：
在将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中之后，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率。
在利用为所述用户设备分配的功率向所述用户设备发送下行数据时，依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述可用功率逐个分配给所述用户设备。
可选地，所述方法还包括：在将所述额外功率逐个分配给所述用户设备时，优先分配已提升功率的用户设备的资源块RB的位置。
可选地，所述优先分配已提升功率的用户设备的资源块RB的位置包括：
对所述分配了额外功率的LTE小区的物理层小区号PCI值进行模3运算， 并获得运算结果。
当所述运算结果为0时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从小的位置开始往大分配。
当所述运算结果为1时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从大的位置开始往小分配。
当所述运算结果为2时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从中间位置开始分配。
可选地，所述利用所述额外功率发送下行数据还包括：
获取所述LTE小区的当前ρA和ρB，记为ρA0和ρB0，其中，所述ρA表示没有导频的正交频分复用符号(OFDM symbol)的数据子载波功率和导频子载波功率的比值，所述ρB表示有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值。
按照所述ρA和ρB的设置规则，逐次增大所述ρA和ρB，并将第k次增大后的ρA和ρB记为ρAk和ρBk，其中，k为正整数。
当P(ρAk，ρBk)大于所述额外功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述额外功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据，其中，P(ρA(k-1)，ρB(k-1))表示LTE小区在ρA取值为ρA(k-1)，且ρB取值为ρB(k-1)时提升的功率值。
可选地，所述方法还包括：
在获取所述LTE小区的当前ρA和ρB之前，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率。
在依据所述ρA(k-1)，ρB(k-1)值发送下行数据时，当P(ρAk，ρBk)大于所述可用功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述可用功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据。
一种LTE系统的用户流量提升装置，包括：判断模块、分配模块和应用模块。
所述判断模块，设置为判断一LTE小区是否需要在所述LTE小区的额定 功率基础上分配额外功率。
所述分配模块，设置为当需要分配额外功率时，通过射频单元RU为所述LTE小区分配额外功率。
所述应用模块，设置为利用所述额外功率发送下行数据。
可选地，所述判断模块包括：第一判断单元、第二判断单元、第三判断单元和第一判定单元。
所述判断模块判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率包括：
所述第一判断单元，设置为判断所述LTE小区的PDSCH EPRE之和是否超过预设功率门限值。
所述第二判断单元，设置为如果所述第一判断单元的判断结果为所述LTE小区的PDSCH EPRE之和超过预设功率门限值，则判断所述LTE小区是否存在预设调制方式的用户设备。
所述第三判断单元，设置为如果所述第二判断单元的判断结果为所述LTE小区存在所述预设调制方式的用户设备，则判断所述预设调制方式的用户设备的MCS值是否小于预设阈值。
所述第一判定单元，设置为如果所述第三判断单元的判断结果为所述预设调制方式的用户设备的MCS值小于预设阈值，则判定所述LTE小区需要在所述LTE小区的额定功率基础上分配额外功率。
可选地，所述分配模块包括：检测单元、第一分配单元、第四判断单元和第二分配单元。
所述分配模块通过射频单元RU为所述LTE小区分配额外功率包括：
所述检测单元，设置为检测需要分配额外功率的所述LTE小区所在的RU是否存在空闲功率。
所述第一分配单元，设置为当所述检测单元检测到所述RU存在空闲功率时，将所述空闲功率按照预设量值分配给所述需要分配额外功率的LTE小区。
所述第四判断单元，设置为当所述检测单元检测到所述RU不存在空闲功率时，判断是否存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区。
所述第二分配单元，设置为如果所述第四判断单元的判断结果为存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区，则向所述其他小区发起功率申请，并在所述其他小区释放功率后，将释放的功率按照所述预设量分配给所述需要分配额外功率的LTE小区。
可选地，所述分配模块还包括：标记单元。
所述标记单元，设置为在所述第一分配单元在将所述空闲功率按照所述预设量值分配给所述需要分配额外功率的LTE小区之后，标记已分配的所述空闲功率。
可选地，所述应用模块包括：查找单元、第五判断单元、第六判断单元、第二获取单元和分配单元。
所述应用模块利用所述额外功率发送下行数据包括：
所述查找单元，设置为查找所述LTE小区中的预设调制方式的用户设备，并加入第一用户集合中，记为Q1＝{UE1，UE2，…，UEm}，其中，UE1～UEm表示不同的用户设备，且m为正整数。
所述第五判断单元，设置为判断所述Q1中的用户设备所处的LTE小区的信号强度是否小于所述用户设备所处的LTE小区的邻区的信号强度。
所述第六判断单元，设置为如果所述第五判断单元的判断结果为所述Q1中的用户设备所处的LTE小区的信号强度小于所述用户设备所处的LTE小区的邻区的信号强度，则获取所述用户设备所处的LTE小区的参考信号接收功率RSRP与所述用户设备所处的LTE小区的邻区的RSRP的差值中的最大值，并判断所述最大值是否大于预设门限值。
所述第二获取单元，设置为当所述最大值大于所述预设门限值时，将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中，记为Q2＝{UE1，UE2，…，UEn}，其中，UE1～UEn表示不同的用户设备，n为正整数，且n≦m。
所述分配单元，设置为依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述可用功率逐个分配给所述用户设备，并利用为所述用户设备分配的功率向所述用户设备发送下行数据。
可选地，所述应用模块还包括：可用功率获取单元和触发单元。
所述可用功率获取单元，设置为在所述第二获取单元将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中之后，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率。
所述可用功率获取单元，还设置为在利用为所述用户设备分配的功率向所述用户设备发送下行数据时，触发所述分配单元依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述可用功率逐个分配给所述用户设备。
可选地，所述应用模块还包括：位置分配单元。
所述位置分配单元，设置为在所述分配子单元将所述可用功率逐个分配给所述用户设备时，优先分配已提升功率的用户设备的资源块RB的位置。
可选地，所述位置分配单元优先分配已提升功率的用户设备的资源块RB的位置包括：
对所述分配了额外功率的LTE小区的物理层小区号PCI值进行模3运算，并获得运算结果。
当所述运算结果为0时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从小的位置开始往大分配。
当所述运算结果为1时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从大的位置开始往小分配。
当所述运算结果为2时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从中间开始分配。
可选地，所述应用模块还包括：第三获取单元、增大单元和提升单元。
所述应用模块利用所述额外功率发送下行数据还包括：
所述第三获取单元，设置为获取所述LTE小区的当前ρA和ρB，记为ρA0、ρB0，其中，所述ρA表示没有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值，所述ρB表示有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值。
所述增大单元，设置为按照所述ρA和ρB的设置规则，逐次增大所述ρA和ρB，并将第k次增大后的ρA和ρB记为ρAk和ρBk，其中，k为正整数。
所述提升单元，设置为当P(ρAk，ρBk)大于所述额外功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述额外功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据，其中，P(ρA(k-1)，ρB(k-1))表示LTE小区在ρA取值为ρA(k-1)，且ρB取值为ρB(k-1)时提升的功率值。
可选地，所述应用模块还包括：第四获取单元。
所述第四获取单元，设置为在所述第三获取单元获取所述LTE小区的当前ρA和ρB之前，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率。
所述第四获取单元，还设置为在依据所述ρA(k-1)，ρB(k-1)值发送下行数据时，触发所述提升单元当P(ρAk，ρBk)大于所述可用功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述可用功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据。
一种基站，包括上述所述的LTE系统的用户流量提升装置。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现所述的LTE系统的用户流量提升方法。
本发明实施例的有益效果是：
本发明实施例的方案，对于发射功率已达到或超过功率门限的LTE小区，即需要在额定功率基础上分配额外功率的LTE小区，通过RU为该LTE小区分配额外功率，并利用该额定功率发送下行数据，从而提升该LTE小区下的用户设备的下行发射功率，进而实现该用户设备流量的提升。因此，本发明实施例的方案，相对相关技术而言，无需改变LTE小区的覆盖，通过提高LTE 小区的发射功率，来提高该LTE小区下的用户设备的接收信噪比，进而提升用户设备的流量。
附图概述
图1表示本发明实施例的LTE系统的用户流量提升方法流程示意图；
图2表示本发明实施例的LTE系统的用户流量提升装置结构框图；
图3表示本发明实施例的判断模块的结构框图；
图4表示本发明实施例的分配模块的结构框图；
图5表示本发明实施例的应用模块的结构框图。
本发明的实施方式
下文中将结合附图对本发明的实施例进行详细说明需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以多种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
实施例一
依据本发明实施例的一个方面，提供了一种LTE系统的用户流量提升方法，该方法，首先，判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率；接着，当需要分配额外功率时，通过射频单元RU为所述LTE小区分配额外功率；最后，利用所述额外功率发送下行数据。
本发明实施例的LTE系统的用户流量提升方法，通过为LTE小区分配额外功率，进而通过提升该LTE小区的发射功率来提升处于该LTE小区内的用户设备的接收信噪比，进而提升该用户设备的流量。
如图1所示，该方法包括步骤S11-S13：
步骤S11、判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率。
每个LTE小区均配置有初始的最大功率，即额定功率，然而处于该LTE小区内的用户设备，特别是小区的边缘用户设备在LTE业务较多时，往往受到LTE小区的功率限制。即，此时该LTE小区的发射功率已达到或预设超过功率门限，则该LTE小区在此种情况下需要在额定功率的基础上分配额外功率。
可选地，可通过两个检测条件判断该LTE小区是否需要额外功率。即，检测LTE小区的PDSCH EPRE的和是否超过预设功率门限值，且此LTE小区存在预设调制方式的用户设备，该调试方式的用户设备的MCS小于预设阈值，例如MCS<5，则该LTE小区满足需要额外功率的条件。其中，预设调制方式指的是正交相移键控(QPSK)调制方式；预设功率门限值为该LTE小区预先设定的功率最大值；预设阈值指的是预先根据实验或经验积累获得的QPSK调制方式的用户设备所处的LTE小区需要额外功率时，该调制方式的用户设备的MSC的界限值。
步骤S12、当需要分配额外功率时，通过RU为所述LTE小区分配额外功率。
其中，步骤S12包括：
检测需要分配额外功率的所述LTE小区所在的RU是否存在空闲功率。
当所述RU存在空闲功率时，将所述空闲功率按照预设量值分配给所述需要分配额外功率的LTE小区。
当所述RU不存在空闲功率时，判断是否存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区。
如果判断结果为存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区，则向所述其他小区发起功率申请，并在所述其他小区释放功率后，将释放的功率按照所述预设量值分配给所述需要分配额外功率的LTE小区。
本发明实施例的LTE系统的用户流量提升方法中，在为需要分配额外功率的LTE小区分配额外功率时，需要首先判断该LTE小区所在的RU是否存在空闲功率可用，当存在空闲功率时，将该空闲功率作按照预设量值分配给 该LTE小区即可。其中，预设量值是根据实际情况的需求设定的将空闲功率作为额外功率分配给该LTE小区的功率值。
此外，为了避免已经分配的空闲功率再次分配给其他小区，可标记已分配的空闲功率进行，使得基站可以控制其他LTE小区不能继续使用被标记的空闲功率。
此外，当LTE小区已使用了RU上的空闲功率，但后续又有新增的空闲功率可用，则LTE小区可追加使用新增的空闲功率，其追加方法同样可由基站控制为每个LTE小区分配。
当RU上不存在空闲功率时，基站可以选择通过写数据库或信令的方式减少同一个RU上的其他小区的功率或者直接关闭其他空闲小区，并分配给需要分配额外功率的LTE小区使用，因此，当其他小区释放功率后，需要分配额外功率的LTE小区可使用该小区释放的部分或者全部功率。
步骤S13、所述利用所述额外功率发送下行数据。
本发明实施例的LTE系统的用户流量提升方法中，在为需要分配额外功率的LTE小区分配了相应的额外功率后，该LTE小区可利用获得的额外功率来发送下行数据，即提升本小区范围内的用户设备的流量。
其中，针对LTE小区的边缘用户设备，即使用QPSK调制方式的用户设备，可采用如下方法：
首先，查找所述LTE小区中的QPSK调制方式的用户设备，并加入第一用户集合中，记为Q1＝{UE1，UE2，…，UEm}，其中，UE1～UEm表示不同的用户设备，且m为正整数。
接着，判断所述Q1中的用户设备所处的LTE小区的信号强度是否小于所述用户设备所处的LTE小区的邻区的信号强度。
再次，如果判断结果为所述Q1中的用户设备所处的LTE小区的信号强度小于所述用户设备所处的LTE小区的邻区的信号强度，则获取所述用户设备所处的LTE小区的参考信号接收功率RSRP与所述用户设备所处的LTE小区的邻区的RSRP的差值中的最大值，并判断所述最大值是否大于预设门限值。
再次，当所述最大值大于所述预设门限值时，将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中，记为Q2＝{UE1，UE2，…，UEn}，其中，UE1～UEn表示不同的用户设备，n为正整数，且n≦m。
最后，依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述额外功率逐个分配给所述用户设备，并利用为所述用户设备分配的功率向所述用户设备发送下行数据。
可选地，对于某些LTE小区，可能存在额定功率范围内的未使用的功率，则对于未使用的功率，也可用来提升该小区内的用户设备的流量。
因此，所述方法还包括：在将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中之后，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率；在利用为所述用户设备分配的功率向所述用户设备发送下行数据时，依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述可用功率逐个分配给所述用户设备。
其中，依据上述方法可获得每一个Q2集合中的用户设备的功率提升值，设△P(j)表示Q2集合中第j个用户设备的功率提升值，P表示上述可用功率，其中，j为正整数，那么所有Q2集合中所有用户设备的提升功率和必须小于所述可用功率，即
Figure PCTCN2016091875-appb-000001
因此，根据计算出的功率提升量，基站将LTE小区的可用功率应用集合Q2＝{UE1，UE2，…，UEn}中用户设备的功率提升，功率提升后的用户设备的信号与干扰加噪声比(SINR)值会得到相应的提高，从而能提升该用户设备的流量。
然而，采用上述方法提升了QPSK调制方式的用户设备的流量后，可能由于用户设备的下行发射功率得以提升，造成邻区干扰问题。因此，对于提高部分边缘用户设备(即使用QPSK调制方式的用户设备)的下行吞吐量的同时，可通过优先分配已提升功率的用户设备的资源块(Resource Block，RB)的位置来减少对相邻小区的干扰。
可选地，减少干扰的方法可以包括：
对所述分配了额外功率的LTE小区的物理层小区号PCI值进行模3运算，并获得运算结果。
当所述运算结果为0时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从小的位置开始往大分配。
当所述运算结果为1时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从大的位置开始往小分配。
当所述运算结果为2时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从中间位置开始分配。
举例来说，设LTE小区A内的Q2集合中包括三个用户设备UE1、UE2和UE3，为了在提升UE1、UE2和UE3的功率的同时减小邻区干扰，需要首先对Q2集合的用户设备对应的LTE小区A的PCI进行模3运算，如果运算结果为0，则对UE1、UE2、UE3的RB分配规则为，从RB小的位置开始往大的位置分配，分配完Q2队列的UE后，再对小区A中其他UE进行RB分配。
然而，对于LTE小区A的一个邻区，例如LTE小区B，假设该小区的PCI模3的值为1，对该LTE小区B内的Q2集合中的用户设备的RB的位置分配，采用从大的位置往小的位置分配时，使得在提升LTE小区A中Q2集合中的用户设备的流量，及提升LTE小区B中Q2集合中的用户设备的流量的过程中，已提升的用户设备的RB的位置相互错开，进而达到了减小了邻区干扰的目的。
另一方面，对于LTE小区内的所有用户设备，可采用如下方法使基站利用所述额外功率发送下行数据，从而提升位于该基站的LTE小区内用户设备的流量：
首先，获取所述LTE小区的当前ρA和ρB，记为ρA0和ρB0，其中，所述ρA表示没有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值，所述ρB表示有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值。
接着，按照所述ρA和ρB的设置规则，逐次增大所述ρA和ρB，并将第k次增大后的ρA和ρB记为ρAk和ρBk，其中，k为正整数。
最后，当P(ρAk，ρBk)大于所述额外功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述额外功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据，其中，P(ρA(k-1)，ρB(k-1))表示LTE小区在ρA取值为ρA(k-1)，且ρB取值为ρB(k-1)时提升的功率值。
同样，对于某些LTE小区，可能存在额定功率范围内的未使用的功率，则对于未使用的功率，也可用来提升该小区内的用户设备的流量。
因此，所述获取所述LTE小区的当前ρA和ρB之前，所述方法还包括：
获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率。
在依据所述ρA(k-1)，ρB(k-1)值发送下行数据时，当P(ρAk，ρBk)大于所述可用功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述可用功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据。
通过上述方法，基站侧使用ρA(k-1)，ρB(k-1)值提升功率，并通过基站的系统信息块(System Information Blocks，SIB)以广播消息的形式将新的参数ρA(k-1)，ρB(k-1)发送给小区的用户设备，使得用户设备解析获取到的参数ρA(k-1)，ρB(k-1)，并利用解析获得的基准进行下行数据的接收，从而提高整个小区用户的流量。
实施例二
依据本发明实施例的另一个方面，还提供了一种LTE系统的用户流量提升装置，如图2所示，该装置200包括：判断模块201、分配模块202和应用模块203。
判断模块201，设置为判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率。
分配模块202，设置为当需要分配额外功率时，通过RU为所述LTE小区分配额外功率。
应用模块203，设置为利用利用所述额外功率发送下行数据。
可选地，如图3所示，所述判断模块201包括：第一判断单元2011、第二判断单元2012、第三判断单元2013和第一判定单元2014。
第一判断单元2011，设置为判断所述LTE小区的PDSCH EPRE之和是否超过预设功率门限值.
第二判断单元2012，设置为如果所述第一判断单元2011的判断结果为所述LTE小区的PDSCH EPRE之和超过预设功率门限值，则判断所述LTE小区是否存在预设调制方式的用户设备。
第三判断单元2013，设置为如果所述第二判断单元2012的判断结果为所述LTE小区存在所述预设调制方式的用户设备，则判断所述预设调制方式的用户设备的MCS值是否小于预设阈值。
第一判定单元2014，设置为如果所述第三判断单元2013的判断结果为所述预设调制方式的用户设备的MCS值小于预设阈值，则判定所述LTE小区需要在所述LTE小区的额定功率基础上分配额外功率。
可选地，如图4所示，所述分配模块202包括：检测单元2021、第一分配单元2022、第四判断单元2023和第二分配单元2024。
所述分配模块通过射频单元RU为所述LTE小区分配额外功率包括：
检测单元2021，设置为检测需要分配额外功率的所述LTE小区所在的RU是否存在空闲功率。
第一分配单元2022，设置为当所述检测单元2021检测到所述RU存在空闲功率时，将所述空闲功率按照预设量值分配给所述需要分配额外功率的LTE小区。
第四判断单元2024，设置为当所述检测单元2021检测到所述RU不存在空闲功率时，判断是否存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区。
第二分配单元2025，设置为如果所述第四判断单元2034的判断结果为存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区，则向所述其他小区发起功率申请，并在所述其他小区释放功率后，将释放的功率按照所述预设量分配给所述需要分配额外功率的LTE小区。
可选地，如图4所示，所述分配模块202还包括：标记单元2023。
标记单元2023，设置为在所述第一分配单元2022在将所述空闲功率按照所述预设量值分配给所述需要分配额外功率的LTE小区之后，标记已分配的所述空闲功率。
可选地，如图5所示，所述应用模块203包括：查找单元2032、第五判断单元2033、第六判断单元2034、第二获取单元2035和分配单元2036。
查找单元2032，设置为查找所述LTE小区中的预设调制方式的用户设备，并加入第一用户集合中，记为Q1＝{UE1，UE2，…，UEm}，其中，UE1～UEm表示不同的用户设备，且m为正整数。
第五判断单元2033，设置为判断所述Q1中的用户设备所处的LTE小区的信号强度是否小于所述用户设备所处的LTE小区的邻区的信号强度。
第六判断单元2034，设置为如果所述第五判断单元2053的判断结果为所述Q1中的用户设备所处的LTE小区的信号强度小于所述用户设备所处的LTE小区的邻区的信号强度，则获取所述用户设备所处的LTE小区的参考信号接收功率RSRP与所述用户设备所处的LTE小区的邻区的RSRP的差值中的最大值，并判断所述最大值是否大于预设门限值。
第二获取单元2035，设置为当所述最大值大于所述预设门限值时，将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中，记为Q2＝{UE1，UE2，…，UEn}，其中，UE1～UEn表示不同的用户设备，n为正整数，且n≦m。
分配单元2036，设置为依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述可用功率逐个分配给所述用户设备，并利用为所述用户设备分配的功率向所述用户设备发送下行数据。
可选地，如图5所示，所述应用模块203还包括：可用功率获取单元和触发单元2031。
可用功率获取单元2031，设置为在所述第二获取单元将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中之后，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得 所述LTE小区的可用功率。
所述可用功率获取单元，还设置为在利用为所述用户设备分配的功率向所述用户设备发送下行数据时，触发所述分配单元2056依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述可用功率逐个分配给所述用户设备。
可选地，如图5所示，所述应用模块203还包括：位置分配单元。
位置分配单元2037，设置为在所述分配子单元2036将所述可用功率逐个分配给所述用户设备时，优先分配已提升功率的用户设备的资源块RB的位置。
可选地，所述位置分配单元2037优先分配已提升功率的用户设备的资源块RB的位置包括：
对所述分配了额外功率的LTE小区的物理层小区号PCI值进行模3运算，并获得运算结果。
当所述运算结果为0时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从小的位置开始往大分配。
当所述运算结果为1时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从大的位置开始往小分配。
当所述运算结果为2时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从中间开始分配。
可选地，如图5所示，所述应用模块203还包括：第三获取单元2039、增大单元20310和提升单元20311。
所述应用模块利用所述额外功率发送下行数据还包括：
第三获取单元2039，设置为获取所述LTE小区的当前ρA和ρB，记为ρA0、ρB0，其中，所述ρA表示没有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值，所述ρB表示有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值。
增大单元20310，设置为按照所述ρA和ρB的设置规则，逐次增大所述ρA和ρB，并将第k次增大后的ρA和ρB记为ρAk和ρBk，其中，k为 正整数。
提升单元20311，设置为当P(ρAk，ρBk)大于所述额外功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述额外功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据，其中，P(ρA(k-1)，ρB(k-1))表示LTE小区在ρA取值为ρA(k-1)，且ρB取值为ρB(k-1)时提升的功率值。
可选地，如图5所示，所述应用模块203还包括：第四获取单元。
第四获取单元2038，设置为在所述第三获取单元获取所述LTE小区的当前ρA和ρB之前，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率。
所述第四获取单元，还设置为在依据所述ρA(k-1)，ρB(k-1)值发送下行数据时，触发所述提升单元20511当P(ρAk，ρBk)大于所述可用功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述可用功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据。
实施例三
依据本发明实施例的另一个方面，还提供了一种基站，包括上述所述的LTE系统的用户流量提升装置。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现所述的LTE系统的用户流量提升方法。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一个计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
上述实施例中的装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。
工业实用性
本发明实施例的方案，对于发射功率已达到或超过功率门限的LTE小区，即需要在额定功率基础上分配额外功率的LTE小区，通过RU为该LTE小区分配额外功率，并利用该额定功率发送下行数据，从而提升该LTE小区下的用户设备的下行发射功率，进而实现该用户设备流量的提升。本发明实施例方案相对相关技术而言，无需改变LTE小区的覆盖，通过提高LTE小区的发射功率，来提高该LTE小区下的用户设备的接收信噪比，进而提升用户设备的流量。

Claims (21)

  1. 一种长期演进LTE系统的用户流量提升方法，包括：
    判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率；
    当需要分配额外功率时，通过射频单元RU为所述LTE小区分配额外功率；
    利用所述额外功率发送下行数据。
  2. 如权利要求1所述的LTE系统的用户流量提升方法，其中，所述判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率包括：
    判断所述LTE小区的物理下行共享信道的资源要素PDSCH EPRE之和是否超过预设功率门限值；
    如果判断结果为所述LTE小区的PDSCH EPRE之和超过预设功率门限值，则判断所述LTE小区是否存在预设调制方式的用户设备；
    如果判断结果为所述LTE小区存在所述预设调制方式的用户设备，则判断所述预设调制方式的用户设备的调制与编码策略MCS值是否小于预设阈值；
    如果判断结果为所述预设调制方式的用户设备的MCS值小于预设阈值，则判定所述LTE小区需要在所述LTE小区的额定功率基础上分配额外功率。
  3. 如权利要求1所述的LTE系统的用户流量提升方法，其中，所述通过射频单元RU为所述LTE小区分配额外功率包括：
    检测需要分配额外功率的所述LTE小区所在的RU是否存在空闲功率；
    当所述RU存在空闲功率时，将所述空闲功率按照预设量值分配给所述需要分配额外功率的LTE小区；
    当所述RU不存在空闲功率时，判断是否存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区；
    如果判断结果为存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区，则向所述其他小区发起功率申请，并在所述其他 小区释放功率后，将释放的功率按照所述预设量值分配给所述需要分配额外功率的LTE小区。
  4. 如权利要求3所述的LTE系统的用户流量提升方法，所述方法还包括：在将所述空闲功率按照所述预设量值分配给所述需要分配额外功率的LTE小区之后，标记已分配的所述空闲功率。
  5. 如权利要求1所述的LTE系统的用户流量提升方法，其中，所述利用所述额外功率发送下行数据包括：
    查找所述LTE小区中的预设调制方式的用户设备，并加入第一用户集合中，记为Q1＝{UE1，UE2，…，UEm}，其中，UE1～UEm表示不同的用户设备，且m为正整数；
    判断所述Q1中的用户设备所处的LTE小区的信号强度是否小于所述用户设备所处的LTE小区的邻区的信号强度；
    如果判断结果为所述Q1中的用户设备所处的LTE小区的信号强度小于所述用户设备所处的LTE小区的邻区的信号强度，则获取所述用户设备所处的LTE小区的参考信号接收功率RSRP与所述用户设备所处的LTE小区的邻区的RSRP的差值中的最大值，并判断所述最大值是否大于预设门限值；
    当所述最大值大于所述预设门限值时，将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中，记为Q2＝{UE1，UE2，…，UEn}，其中，UE1～UEn表示不同的用户设备，n为正整数，且n≦m；
    依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述额外功率逐个分配给所述用户设备，并利用为所述用户设备分配的功率向所述用户设备发送下行数据。
  6. 如权利要求5所述的LTE系统的用户流量提升方法，所述方法还包括：在将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中之后，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率；
    在利用为所述用户设备分配的功率向所述用户设备发送下行数据时，依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所 述可用功率逐个分配给所述用户设备。
  7. 如权利要求5所述的LTE系统的用户流量提升方法，所述方法还包括：在将所述额外功率逐个分配给所述用户设备时，优先分配已提升功率的用户设备的资源块RB的位置。
  8. 如权利要求7所述的LTE系统的用户流量提升方法，其中，所述优先分配已提升功率的用户设备的资源块RB的位置包括：
    对所述分配了额外功率的LTE小区的物理层小区号PCI值进行模3运算，并获得运算结果；
    当所述运算结果为0时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从小的位置开始往大分配；
    当所述运算结果为1时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从大的位置开始往小分配；
    当所述运算结果为2时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从中间位置开始分配。
  9. 如权利要求1所述的LTE系统的用户流量提升方法，所述利用所述额外功率发送下行数据还包括：
    获取所述LTE小区的当前ρA和ρB，记为ρA0和ρB0，其中，所述ρA表示没有导频的正交频分复用符号OFDM symbol的数据子载波功率和导频子载波功率的比值，所述ρB表示有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值；
    按照所述ρA和ρB的设置规则，逐次增大所述ρA和ρB，并将第k次增大后的ρA和ρB记为ρAk和ρBk，其中，k为正整数；
    当P(ρAk，ρBk)大于所述额外功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述额外功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据，其中，P(ρA(k-1)，ρB(k-1))表示LTE小区在ρA取值为ρA(k-1)，且ρB取值为ρB(k-1)时提升的功率值。
  10. 如权利要求9所述的LTE系统的用户流量提升方法，所述方法还包括：
    在获取所述LTE小区的当前ρA和ρB之前，获取所述LTE小区的额定 功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率；
    在依据所述ρA(k-1)，ρB(k-1)值发送下行数据时，当P(ρAk，ρBk)大于所述可用功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述可用功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据。
  11. 一种长期演进LTE系统的用户流量提升装置，包括：判断模块、分配模块和应用模块；
    所述判断模块，设置为判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率；
    所述分配模块，设置为当需要分配额外功率时，通过射频单元RU为所述LTE小区分配额外功率；
    所述应用模块，设置为利用所述额外功率发送下行数据。
  12. 如权利要求11所述的LTE系统的用户流量提升装置，其中，所述判断模块包括：第一判断单元、第二判断单元、第三判断单元和第一判定单元；
    所述判断模块判断一LTE小区是否需要在所述LTE小区的额定功率基础上分配额外功率包括：
    所述第一判断单元，设置为判断所述LTE小区的物理下行共享信道的资源要素PDSCH EPRE之和是否超过预设功率门限值；
    所述第二判断单元，设置为如果所述第一判断单元的判断结果为所述LTE小区的PDSCH EPRE之和超过预设功率门限值，则判断所述LTE小区是否存在正交相移键控预设调制方式的用户设备；
    所述第三判断单元，设置为如果所述第二判断单元的判断结果为所述LTE小区存在所述预设调制方式的用户设备，则判断所述预设调制方式的用户设备的调制与编码策略MCS值是否小于预设阈值；
    所述第一判定单元，设置为如果所述第三判断单元的判断结果为所述预设调制方式的用户设备的MCS值小于预设阈值，则判定所述LTE小区需要在所述LTE小区的额定功率基础上分配额外功率。
  13. 如权利要求11所述的LTE系统的用户流量提升装置，其中，所述分 配模块包括：检测单元、第一分配单元、第四判断单元和第二分配单元；
    所述分配模块通过射频单元RU为所述LTE小区分配额外功率包括：
    所述检测单元，设置为检测需要分配额外功率的所述LTE小区所在的RU是否存在空闲功率；
    所述第一分配单元，设置为当所述检测单元检测到所述RU存在空闲功率时，将所述空闲功率按照预设量值分配给所述需要分配额外功率的LTE小区；
    所述第四判断单元，设置为当所述检测单元检测到所述RU不存在空闲功率时，判断是否存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区；
    所述第二分配单元，设置为如果所述第四判断单元的判断结果为存在与所述RU相对应的除所述需要分配额外功率的LTE小区之外的其他小区，则向所述其他小区发起功率申请，并在所述其他小区释放功率后，将释放的功率按照所述预设量分配给所述需要分配额外功率的LTE小区。
  14. 如权利要求13所述的LTE系统的用户流量提升装置，所述分配模块还包括：标记单元；
    所述标记单元，设置为在所述第一分配单元在将所述空闲功率按照所述预设量值分配给所述需要分配额外功率的LTE小区之后，标记将已分配的所述空闲功率。
  15. 如权利要求11所述的LTE系统的用户流量提升装置，其中，所述应用模块包括：查找单元、第五判断单元、第六判断单元、第二获取单元和分配单元；
    所述应用模块利用所述额外功率发送下行数据包括：
    所述查找单元，设置为查找所述LTE小区中的预设调制方式的用户设备，并加入第一用户集合中，记为Q1＝{UE1，UE2，…，UEm}，其中，UE1～UEm表示不同的用户设备，且m为正整数；
    所述第五判断单元，设置为判断所述Q1中的用户设备所处的LTE小区的信号强度是否小于所述用户设备所处的LTE小区的邻区的信号强度；
    所述第六判断单元，设置为如果所述第五判断单元的判断结果为所述Q1中的用户设备所处的LTE小区的信号强度小于所述用户设备所处的LTE小区的邻区的信号强度，则获取所述用户设备所处的LTE小区的参考信号接收功率RSRP与所述用户设备所处的LTE小区的邻区的RSRP的差值中的最大值，并判断所述最大值是否大于预设门限值；
    所述第二获取单元，设置为当所述最大值大于所述预设门限值时，将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中，记为Q2＝{UE1，UE2，…，UEn}，其中，UE1～UEn表示不同的用户设备，n为正整数，且n≦m；
    所述分配单元，设置为依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述可用功率逐个分配给所述用户设备，并利用为所述用户设备分配的功率向所述用户设备发送下行数据。
  16. 如权利要求15所述的LTE系统的用户流量提升装置，所述应用模块还包括：可用功率获取单元和触发单元；
    所述可用功率获取单元，设置为在所述第二获取单元将所述用户设备加入表示需要提升功率的用户队列的第二用户集合中之后，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率；
    所述可用功率获取单元，还设置为在利用为所述用户设备分配的功率向所述用户设备发送下行数据时，触发所述分配单元依据预先设定的功率分配要求，并按照所述Q2中用户设备的排列顺序，将所述可用功率逐个分配给所述用户设备。
  17. 如权利要求15所述的LTE系统的用户流量提升装置，其特征在于，所述应用模块还包括：位置分配单元；
    所述位置分配单元，设置为在所述分配子单元将所述可用功率逐个分配给所述用户设备时，优先分配已提升功率的用户设备的资源块RB的位置。
  18. 如权利要求17所述的LTE系统的用户流量提升装置，其特征在于，所述位置分配单元优先分配已提升功率的用户设备的资源块RB的位置包括：
    对所述分配了额外功率的LTE小区的物理层小区号PCI值进行模3运算，并获得运算结果；
    当所述运算结果为0时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从小的位置开始往大分配；
    当所述运算结果为1时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从大的位置开始往小分配；
    当所述运算结果为2时，按照所述Q2中的用户设备的排列顺序，将所述Q2中的用户设备的RB值从中间开始分配。
  19. 如权利要求11所述的LTE系统的用户流量提升装置，所述应用模块还包括：第三获取单元、增大单元和提升单元；
    所述应用模块利用所述额外功率发送下行数据还包括：
    所述第三获取单元，设置为获取所述LTE小区的当前ρA和ρB，记为ρA0、ρB0，其中，所述ρA表示没有导频的正交频分复用符号OFDM symbol的数据子载波功率和导频子载波功率的比值，所述ρB表示有导频的OFDM symbol的数据子载波功率和导频子载波功率的比值；
    所述增大单元，设置为按照所述ρA和ρB的设置规则，逐次增大所述ρA和ρB，并将第k次增大后的ρA和ρB记为ρAk和ρBk，其中，k为正整数；
    所述提升单元，设置为当P(ρAk，ρBk)大于所述额外功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述额外功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据提升基站的功率，其中，P(ρA(k-1)，ρB(k-1))表示LTE小区在ρA取值为ρA(k-1)，且ρB取值为ρB(k-1)时提升的功率值。
  20. 如权利要求19所述的LTE系统的用户流量提升装置，所述应用模块还包括：第四获取单元；
    所述第四获取单元，设置为在所述第三获取单元获取所述LTE小区的当前ρA和ρB之前，获取所述LTE小区的额定功率与已使用功率的差值，并将所述差值与所述额外功率相加，获得所述LTE小区的可用功率；
    所述第四获取单元，还设置为在依据所述ρA(k-1)，ρB(k-1)值发送下行 数据时，触发所述提升单元当P(ρAk，ρBk)大于所述可用功率的功率值且P(ρA(k-1)，ρB(k-1))小于等于所述可用功率的功率值时，依据所述ρA(k-1)，ρB(k-1)值发送下行数据。
  21. 一种基站，包括如权利要求11～20任意一项所述的长期演进LTE系统的用户流量提升装置。
PCT/CN2016/091875 2015-07-29 2016-07-27 一种lte系统的用户流量提升方法、装置及基站 WO2017016478A1 (zh)

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US20110021236A1 (en) * 2009-07-24 2011-01-27 Clear Wireless Llc Quality of service based downlink power allocation
CN102223722A (zh) * 2011-06-10 2011-10-19 电信科学技术研究院 下行传输方法和设备
CN103298093A (zh) * 2012-02-24 2013-09-11 株式会社Ntt都科摩 多系统共存下的功率分配方法及装置
WO2014027775A1 (ko) * 2012-08-13 2014-02-20 엘지전자 주식회사 감소된 전력으로 상향링크 전송을 수행하는 방법 및 단말

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US20110021236A1 (en) * 2009-07-24 2011-01-27 Clear Wireless Llc Quality of service based downlink power allocation
CN102223722A (zh) * 2011-06-10 2011-10-19 电信科学技术研究院 下行传输方法和设备
CN103298093A (zh) * 2012-02-24 2013-09-11 株式会社Ntt都科摩 多系统共存下的功率分配方法及装置
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