WO2015127781A1 - 一种提高下行发射功率的方法及网络侧网元、存储介质 - Google Patents

一种提高下行发射功率的方法及网络侧网元、存储介质 Download PDF

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WO2015127781A1
WO2015127781A1 PCT/CN2014/087269 CN2014087269W WO2015127781A1 WO 2015127781 A1 WO2015127781 A1 WO 2015127781A1 CN 2014087269 W CN2014087269 W CN 2014087269W WO 2015127781 A1 WO2015127781 A1 WO 2015127781A1
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level parameter
value
user
transmit power
cell
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PCT/CN2014/087269
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English (en)
French (fr)
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吴昊
楼红伟
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中兴通讯股份有限公司
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Priority to EP14883656.2A priority Critical patent/EP3096567B1/en
Priority to US15/118,488 priority patent/US9986510B2/en
Priority to JP2016553817A priority patent/JP6326506B2/ja
Priority to KR1020167022745A priority patent/KR101872815B1/ko
Publication of WO2015127781A1 publication Critical patent/WO2015127781A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • 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
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/16—Deriving transmission power values from another channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
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    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H—ELECTRICITY
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    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/221—TPC being performed according to specific parameters taking into account previous information or commands using past power control commands
    • 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
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    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/223—TPC being performed according to specific parameters taking into account previous information or commands predicting future states of the transmission
    • 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
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/226—TPC being performed according to specific parameters taking into account previous information or commands using past references to control power, e.g. look-up-table
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H—ELECTRICITY
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    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/281—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account user or data type priority
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    • H04W52/282—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account the speed of the mobile
    • H—ELECTRICITY
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    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/283—Power depending on the position of the mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/285—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account the mobility of the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/288—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account the usage mode, e.g. hands-free, data transmission, telephone
    • 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
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • 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
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • 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
    • H04W52/38—TPC being performed in particular situations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • 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

Definitions

  • the present invention relates to an enhanced inter-cell interference coordination (eICIC) technology, and more particularly to a method for improving downlink transmit power, a network side network element, and a storage medium.
  • eICIC enhanced inter-cell interference coordination
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • 3GPP 3rd Generation Partnership Project
  • the heterogeneous network mode in LTE networks is a very common way of networking in urban areas and hotspots.
  • the signals sent by the macro stations are subjected to a large amount of transmission loss when the heavy-duty barrier reaches the indoor communication environment, and the signal is very weak. Therefore, it cannot be Provide users with high quality data transmission.
  • a micro station is placed in a covered area or hotspot area of a macro station, the signal can be enhanced, the network speed can be increased, and the data transmission rate can be increased.
  • the microstation is a small-sized cellular mobile communication base station that is low-power, low-cost, easy to operate, and can be purchased, configured, and self-installed as needed.
  • the interference problem is serious.
  • the traditional Inter-Cell Interference Coordination (ICIC) technology cannot effectively solve the inter-cell interference problem. Therefore, in order to effectively solve the problem of inter-cell interference, the eICIC technology is proposed in the 3GPP conference. However, in the eICIC technology, the downlink transmission power of the base station cannot be effectively utilized, which reduces the user experience.
  • ICIC Inter-Cell Interference Coordination
  • the embodiment of the present invention provides a method for improving downlink transmit power, and a network side network element and a storage medium, which can maximize the downlink of the network side network element without exceeding the radio frequency capability. Transmit power.
  • a method for improving downlink transmit power including:
  • the network side network element determines that the downlink subframe in the radio frame is an almost null subframe, the user-level parameter is assigned a maximum value in the value corresponding to the user-level parameter, and the cell-level parameter is assigned to the cell-level parameter.
  • the maximum value in the value is assigned to the cell-level parameter.
  • the downlink transmit power is determined according to the user level parameter value and the cell level parameter value.
  • the method further includes:
  • the cell level parameter is assigned a value of a median value corresponding to the cell level parameter
  • the loops are sequentially looped until the determined downlink transmit power is less than or equal to the radio frequency maximum power of the network side network element.
  • the determining the downlink transmit power according to the user-level parameter value and the cell-level parameter value includes:
  • ⁇ A is a ratio of a sub-carrier power corresponding to a data portion of the orthogonal frequency division multiplexing symbol that does not include the pilot to a sub-carrier power corresponding to the pilot portion;
  • ⁇ B is a ratio of a subcarrier power corresponding to a data portion of the pilot-containing orthogonal frequency division multiplexing symbol and a subcarrier power corresponding to the pilot portion;
  • the downlink transmit power is determined according to the user level parameter value, the cell level parameter value, ⁇ A and ⁇ B .
  • An embodiment of the present invention further provides a network side network element that improves downlink transmit power, where the network side network element includes:
  • the determining unit is configured to: when determining that the downlink subframe in the radio frame is an almost null subframe, assign the user-level parameter to a maximum value of the value corresponding to the user-level parameter, and assign the cell-level parameter to the cell-level parameter.
  • the maximum value in the corresponding value is configured to: when determining that the downlink subframe in the radio frame is an almost null subframe, assign the user-level parameter to a maximum value of the value corresponding to the user-level parameter, and assign the cell-level parameter to the cell-level parameter. The maximum value in the corresponding value;
  • the determining unit is configured to determine a downlink transmit power according to the user level parameter value and the cell level parameter value.
  • the network side network element further includes:
  • a determining unit configured to determine whether the downlink transmit power is greater than a radio frequency maximum power of the network side network element
  • the value-adding unit is further configured to: when the downlink transmit power is greater than a radio frequency maximum power of the network side network element, assign the user-level parameter to a median value corresponding to the user-level parameter, and The cell level parameter is assigned a value of the median parameter corresponding to the median parameter;
  • the determining unit is further configured to determine the downlink transmit power according to the value of the user-level parameter and the value of the cell-level parameter, and sequentially cycle until the determined downlink transmit power is less than or equal to the maximum radio power of the network-side network element.
  • the determining unit comprises: a first determining subunit, configured to determine ⁇ A according to the user level parameter value, wherein the ⁇ A is a data part of an orthogonal frequency division multiplexing symbol that does not have a pilot Corresponding subcarrier power and a ratio of subcarrier power corresponding to the pilot portion; determining ⁇ B according to the cell level parameter value, wherein the ⁇ B is a data portion corresponding to the pilot orthogonal OFDM symbol Ratio of subcarrier power to subcarrier power corresponding to the pilot portion;
  • a second determining subunit configured to determine a downlink transmit power according to the user level parameter value, the cell level parameter value, ⁇ A and ⁇ B .
  • the method for downlink transmit power and the network side network element and the storage medium can adjust the assignment of the user-level parameter P A value and the cell-level parameter P B value, thereby adjusting ⁇ A and ⁇ B , and adjusting according to The user-level parameter P A value, the cell-level parameters P B , ⁇ A , and ⁇ B adjust the downlink transmit power value, so that the downlink transmit power value can be maximized without exceeding the radio frequency capability of the network side network element.
  • the value improves the performance of the eICIC technology and improves the performance of the LTE system.
  • FIG. 1 is a schematic flowchart showing an implementation of a method for improving downlink transmit power according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a network side network element for improving downlink transmit power according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a determining unit according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of implementing a method for improving downlink transmit power according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
  • Step 101 When the network side network element determines that the downlink subframe in the radio frame is an almost null subframe, assign the user-level parameter P A to the maximum value of the value corresponding to the user-level parameter, and assign the cell-level parameter P B The maximum value of the values corresponding to the cell level parameter;
  • Step 102 Determine downlink transmit power according to the user level parameter P A value and the cell level parameter P B value.
  • the almost empty subframe is a subframe in the time domain enhanced cell interference coordination technology, and the physical downlink control channel and the downlink data channel sent by the network side network element (for example, the macro station) are almost empty subframes;
  • the yuan can be a macro station or a micro station.
  • the method further includes:
  • the network side network element determines whether the downlink transmission power is greater than the radio frequency maximum power of the network side network element, and when yes, assigning the user level parameter to the P A value is the highest value of the user level parameter.
  • a value, the P- B value of the cell-level parameter is a median maximum value corresponding to the cell-level parameter;
  • the loops are sequentially looped until the determined downlink transmit power is less than or equal to the radio frequency maximum power of the network side network element.
  • the determining the downlink transmit power according to the user-level parameter P A value and the cell-level parameter P B value includes:
  • ⁇ A is a sub-carrier power corresponding to a data portion of the orthogonal frequency division multiplexing symbol that does not include the pilot, and a sub-carrier power corresponding to the pilot portion a ratio ⁇ B is determined according to the cell level parameter value, wherein the ⁇ B is a ratio of a subcarrier power corresponding to a data portion of the pilot-containing orthogonal frequency division multiplexing symbol and a subcarrier power corresponding to the pilot portion ;
  • the downlink transmit power is determined according to the user level parameter value, the cell level parameter value, ⁇ A and ⁇ B .
  • the P B is an index of ⁇ B / ⁇ A , and the P B corresponds to ⁇ B / ⁇ A one-to-one.
  • the value P B can be determined by one relationship with P B ⁇ B / ⁇ A is the value of ⁇ B, and further subdivided by P A, P B, ⁇ B / ⁇ A, and the physical layer
  • the configuration information, etc. determines the downlink transmit power; where, when the determined downlink transmit power value exceeds the radio frequency capability of the network side network element, that is, when the determined downlink transmit power value is greater than the radio frequency maximum power of the network side network element, Assigning the user-level parameter P A and the cell-level parameter P B respectively, respectively assigning the sub-maximum value of the value corresponding to the user-level parameter and the sub-maximum value of the value corresponding to the cell-level parameter, and then according to the re-assigned P A
  • the value and the P B value are determined, and ⁇ A and ⁇ B are determined, and a new downlink transmit power is determined, and the loop is sequentially cycled until the determined downlink transmit power is less than or equal to the maximum RF power
  • the embodiment of the present invention can be adjusted assignment P A, P B, it can be adjusted by assigning P A, P B of the downlink transmit power, the downlink transmission power value does not exceed the capacity of the network-RF conditions for The maximum value, in turn, can improve the performance of the eICIC technology and improve the performance of the LTE system.
  • the embodiment of the present invention provides a network side network element that improves downlink transmission power corresponding to the foregoing method.
  • the network side network element includes:
  • the determining unit 21 is configured to: when determining that the downlink subframe in the radio frame is an almost null subframe, assign the user-level parameter to a maximum value of the value corresponding to the user-level parameter, and assign the cell-level parameter to the cell-level parameter The maximum value of the value corresponding to the parameter;
  • the determining unit 22 is configured to determine the downlink transmit power according to the user level parameter value and the cell level parameter value.
  • the network side network element further includes:
  • the determining unit 23 is configured to determine whether the downlink transmit power is greater than the radio frequency of the network side network element is greater than the power;
  • the value-adding unit 21 is further configured to: when the downlink transmit power is greater than the radio maximum power of the network-side network element, assign the user-level parameter to a median value corresponding to the user-level parameter, and The cell level parameter assignment is the lowest value of the value corresponding to the cell level parameter. Large value
  • the determining unit 22 is further configured to determine the downlink transmit power according to the value of the user-level parameter and the value of the cell-level parameter, and sequentially cycle until the determined downlink transmit power is less than or equal to the maximum RF power of the network-side network element. .
  • the determining unit 22 includes:
  • a first determining sub-unit 221, configured to determine ⁇ A according to the user-level parameter P A value, where the ⁇ A is a sub-carrier power corresponding to a data portion of an orthogonal frequency division multiplexing symbol that does not include a pilot a ratio of subcarrier power corresponding to the pilot portion; determining ⁇ B according to the cell level parameter P B , wherein the ⁇ B is a subcarrier power corresponding to the data portion of the orthogonal frequency division multiplexing symbol containing the pilot a ratio of subcarrier power corresponding to the pilot portion;
  • the second determining subunit 222 is configured to determine a downlink transmit power according to the user level parameter P A value, the cell level parameter P B value, ⁇ A , and ⁇ B .
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to perform the method for improving downlink transmit power according to the embodiment.
  • the evaluation unit 21, the determining unit 22, the determining unit 23, the first determining subunit 221, and the second determining subunit 222 may each be processed by a central processing unit (CPU) or digital signal processing ( DSP, Digital Signal Processor, or Field Programmable Gate Array (FPGA), etc.; the CPU, DSP, and FPGA can be built in the data query system.
  • CPU central processing unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the user-level parameter P A value and the cell-level parameter P B value can be adjusted, and then ⁇ A and ⁇ B are adjusted, and according to the adjusted user-level parameter P A value, the cell-level parameter P B , ⁇ A and ⁇ B adjust the downlink transmit power value, so that the downlink transmit power value can be maximized without exceeding the radio frequency capability of the network side network element, thereby improving the performance of the eICIC technology and improving the performance of the LTE system.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明实施例公开了一种提高下行发射功率的方法，包括：网络侧网元确定无线帧中的下行子帧为几乎空子帧时，将用户级参数赋值为所述用户级参数对应的数值中的最大值，并将小区级参数赋值为所述小区级参数对应的数值中的最大值；根据用户级参数值和小区级参数值确定下行发射功率。本发明实施例还公开了一种提高下行发射功率的网络侧网元及存储介质。

Description

一种提高下行发射功率的方法及网络侧网元、存储介质 技术领域
本发明涉及增强型小区间干扰协调(eICIC，enhanced Inter-Cell Interference Coordination)技术，尤其涉及一种提高下行发射功率的方法及网络侧网元、存储介质。
背景技术
长期演进(LTE，Long Term Evolution)是由第三代合作伙伴计划(3GPP，The 3rd Generation Partnership Project)组织制定的通用移动通信***(UMTS，Universal Mobile Telecommunications System)技术标准的长期演进结果。
LTE网络中的异构网方式是在城区和热点地区非常普遍的建网方式。在高楼密集、用户分布集中的城区或热点区域，由于建筑物的屏蔽和吸收作用，宏站发出的信号在穿越重重阻隔到达室内通信环境时，受到大量的传输损耗，信号十分微弱，因此，不能为用户提供高质量的数据传输。若在宏站的覆盖城区或热点区域中放置微站，就能增强信号，提高网络速率，进而提高数据传输速率。而且，微站是一种低功率、低成本、易操作、且根据需要能够自行购买、自行配置以及自行安装的小型蜂窝移动通信基站。在实际应用中，由于微站大量存在，且与宏站覆盖重叠，因此干扰问题严重。
传统的小区间干扰协调(ICIC，Inter-Cell Interference Coordination)技术不能有效解决小区间干扰问题。因此，为了有效解决小区间干扰问题，3GPP会议中提出了eICIC技术，但是，在eICIC技术中基站下行发射功率不能有效利用，降低了用户体验。
发明内容
为解决现有存在的技术问题，本发明实施例提供一种提高下行发射功率的方法及网络侧网元、存储介质，在不超过射频能力的基础上，能最大化提高网络侧网元的下行发射功率。
本发明实施例的技术方案是这样实现的：一种提高下行发射功率的方法，包括：
网络侧网元确定无线帧中的下行子帧为几乎空子帧时，将用户级参数赋值为所述用户级参数对应的数值中的最大值，并将小区级参数赋值为所述小区级参数对应的数值中的最大值；
根据用户级参数值和小区级参数值确定下行发射功率。
优选地，根据用户级参数值和小区级参数值确定下行发射功率后，所述方法还包括：
所述网络侧网元确定所述下行发射功率是否大于所述网络侧网元的射频最大功率，是时，将所述用户级参数赋值为所述用户级参数对应的数值中次最大值，将所述小区级参数赋值为所述小区级参数对应的数值中次最大值；
重新根据用户级参数值和小区级参数值确定下行发射功率；
依次循环直至确定出的下行发射功率小于等于所述网络侧网元的射频最大功率。
优选地，所述根据用户级参数值和小区级参数值确定下行发射功率，包括：
根据所述用户级参数值确定ρA，其中，所述ρA为未含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；根据所述小区级参数值确定ρB，其中，所述ρB为含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的 比值；
根据所述用户级参数值、小区级参数值、ρA以及ρB确定下行发射功率。
本发明实施例还提供了一种提高下行发射功率的网络侧网元，所述网络侧网元包括：
赋值单元，配置为确定无线帧中的下行子帧为几乎空子帧时，将用户级参数赋值为所述用户级参数对应的数值中的最大值，并将小区级参数赋值为所述小区级参数对应的数值中的最大值；
确定单元，配置为根据用户级参数值和小区级参数值确定下行发射功率。
优选地，所述网络侧网元还包括：
判断单元，配置为确定所述下行发射功率是否大于所述网络侧网元的射频最大功率；
所述赋值单元，还配置为当所述下行发射功率大于所述网络侧网元的射频最大功率时，将所述用户级参数赋值为所述用户级参数对应的数值中次最大值，将所述小区级参数赋值为所述小区级参数对应的数值中次最大值；
所述确定单元，还配置为根据赋值后的所述用户级参数值和小区级参数值确定下行发射功率，依次循环直至确定出的下行发射功率小于等于所述网络侧网元的射频最大功率。
优选地，所述确定单元包括：第一确定子单元，配置为根据所述用户级参数值确定ρA，其中，所述ρA为未含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；根据所述小区级参数值确定ρB，其中，所述ρB为含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；
第二确定子单元，配置为根据所述用户级参数值、小区级参数值、ρA以 及ρB确定下行发射功率。
本发明实施例所提供的下行发射功率的方法及网络侧网元、存储介质，能够调整用户级参数PA值以及小区级参数PB值的赋值，进而调整ρA和ρB，并根据调整后的所述用户级参数PA值、小区级参数PB、ρA以及ρB调整下行发射功率值，如此，能使下行发射功率值在不超过网络侧网元射频能力的条件下为最大值，进而能提升eICIC技术的性能，以及提升LTE***的性能。
附图说明
图1为本发明实施例提高下行发射功率的方法的实现流程图示意图；
图2为本发明实施例提高下行发射功率的网络侧网元的结构示意图；
图3为本发明实施例确定单元的结构示意图。
具体实施方式
下面将结合具体实施例及附图对本发明的实施方式进行详细描述。
图1为本发明实施例提高下行发射功率的方法的实现流程图示意图，如图1所示，所述方法包括：
步骤101：网络侧网元确定无线帧中的下行子帧为几乎空子帧时，将用户级参数PA赋值为所述用户级参数对应的数值中的最大值，并将小区级参数PB赋值为所述小区级参数对应的数值中的最大值；
步骤102：根据用户级参数PA值和小区级参数PB值确定下行发射功率。
这里，所述几乎空子帧为时域增强型小区干扰协调技术中，网络侧网元(例如宏站)发送的物理下行控制信道和下行数据信道几乎均为空的子帧；所述网络侧网元可以为宏站，也可以为微站。
所述用户级参数PA对应的数值可以为集合{-6，-4.77，-3，-1.77，0，1，2，3}中的数值；所述小区级参数PB对应的数值可以为集合{0，1， 2，3}中的数值。
优选地，所述根据用户级参数PA值和小区级参数PB值确定下行发射功率后，所述方法还包括：
所述网络侧网元确定所述下行发射功率是否大于所述网络侧网元的射频最大功率，是时，将所述用户级参数赋PA值为所述用户级参数对应的数值中次最大值，将所述小区级参数赋PB值为所述小区级参数对应的数值中次最大值；
重新根据用户级参数PA值和小区级参数PB值确定下行发射功率；
依次循环直至确定出的下行发射功率小于等于所述网络侧网元的射频最大功率。
优选地，所述根据用户级参数PA值和小区级参数PB值确定下行发射功率，包括：
根据所述用户级参数PA值确定ρA，其中，所述ρA为未含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；根据所述小区级参数值确定ρB，其中，所述ρB为含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；
根据所述用户级参数值、小区级参数值、ρA以及ρB确定下行发射功率。
这里，在预编码(precoding)的4端口发射分集模式中，在非多用户的多输入多输出(MIMO，Multiple-Input Multiple-Output)技术下，所述PA与ρA的关系可以为：ρA＝PA或ρA＝PA+3。
所述PB为ρB/ρA的索引，且所述PB与ρB/ρA一一对应。
当所述PB值确定后，可以通过PB与ρB/ρA的一一对应关系确定出ρB的值，进一步再通过PA、PB、ρB/ρA、以及物理层的配置信息等确定出下行发 射功率；这里，当确定出的下行发射功率值超过网络侧网元的射频能力时，即当确定出的下行发射功率值大于网络侧网元的射频最大功率时，重新对用户级参数PA和小区级参数PB进行赋值，分别赋值为用户级参数对应的数值中的次最大值、小区级参数对应的数值中的次最大值，随后根据重新赋值后的PA值和PB值，确定ρA以及ρB，并确定出新的下行发射功率，依次循环直至确定出的下行发射功率小于等于所述网络侧网元的射频最大功率，此时，确定出的最新的下行发射功率为所述网络侧网元的射频能力范围内的最大的下行发射功率。
由于本发明实施例能够调整PA、PB的赋值，因此可以通过PA、PB的赋值调整下行发射功率，使所述下行发射功率值在不超过网络侧网元射频能力的条件下为最大值，进而能提升eICIC技术的性能，提升LTE***的性能。
本发明实施例提供了一种对应于上述方法的提高下行发射功率的网络侧网元，如图2所示，所述网络侧网元包括：
赋值单元21，配置为确定无线帧中的下行子帧为几乎空子帧时，将用户级参数赋值为所述用户级参数对应的数值中的最大值，并将小区级参数赋值为所述小区级参数对应的数值中的最大值；
确定单元22，配置为根据用户级参数值和小区级参数值确定下行发射功率。
优选地，所述网络侧网元还包括：
判断单元23，配置为确定所述下行发射功率是否大于所述网络侧网元的射频大于功率；
所述赋值单元21，还配置为当所述下行发射功率大于所述网络侧网元的射频最大功率时，将所述用户级参数赋值为所述用户级参数对应的数值中次最大值，将所述小区级参数赋值为所述小区级参数对应的数值中次最 大值；
所述确定单元22，还配置为根据赋值后的所述用户级参数值和小区级参数值确定下行发射功率，依次循环直至确定出的下行发射功率小于等于所述网络侧网元的射频最大功率。
优选地，如图3所示，所述确定单元22包括：
第一确定子单元221，配置为根据所述用户级参数PA值确定ρA，其中，所述ρA为未含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；根据所述小区级参数PB值确定ρB，其中，所述ρB为含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；
第二确定子单元222，配置为根据所述用户级参数PA值、小区级参数PB值、ρA以及ρB确定下行发射功率。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行本实施例所述的提高下行发射功率的方法。
在实际应用中，所述赋值单元21、确定单元22、判断单元23、第一确定子单元221及第二确定子单元222均可由中央处理单元(CPU，Central Processing Unit)、或数字信号处理(DSP，Digital Signal Processor)、或现场可编程门阵列(FPGA，Field Programmable Gate Array)等来实现；所述CPU、DSP、FPGA均可内置于数据查询***中。
本领域内的技术人员应明白，本发明的实施例可提供为方法、***、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述仅是本发明实施例的实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明实施例原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明实施例的保护范围。
工业实用性
本发明实施例能够调整用户级参数PA值以及小区级参数PB值的赋值，进而调整ρA和ρB，并根据调整后的所述用户级参数PA值、小区级参数PB、ρA以及ρB调整下行发射功率值，如此，能使下行发射功率值在不超过网络侧网元射频能力的条件下为最大值，进而能提升eICIC技术的性能，以及 提升LTE***的性能。

Claims (7)

  1. 一种提高下行发射功率的方法，所述方法包括：
    网络侧网元确定无线帧中的下行子帧为几乎空子帧时，将用户级参数赋值为所述用户级参数对应的数值中的最大值，并将小区级参数赋值为所述小区级参数对应的数值中的最大值；
    根据用户级参数值和小区级参数值确定下行发射功率。
  2. 根据权利要求1所述的方法，其中，根据用户级参数值和小区级参数值确定下行发射功率后，所述方法还包括：
    所述网络侧网元确定所述下行发射功率是否大于所述网络侧网元的射频最大功率，是时，将所述用户级参数赋值为所述用户级参数对应的数值中次最大值，将所述小区级参数赋值为所述小区级参数对应的数值中次最大值；
    重新根据用户级参数值和小区级参数值确定下行发射功率；
    依次循环直至确定出的下行发射功率小于等于所述网络侧网元的射频最大功率。
  3. 根据权利要求1或2所述的方法，其中，所述根据用户级参数值和小区级参数值确定下行发射功率，包括：
    根据所述用户级参数值确定ρA，其中，所述ρA为未含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；根据所述小区级参数值确定ρB，其中，所述ρB为含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；
    根据所述用户级参数值、小区级参数值、ρA以及ρB确定下行发射功率。
  4. 一种提高下行发射功率的网络侧网元，所述网络侧网元包括：
    赋值单元，配置为确定无线帧中的下行子帧为几乎空子帧时，将用户级参数赋值为所述用户级参数对应的数值中的最大值，并将小区级参数赋值为所述小区级参数对应的数值中的最大值；
    确定单元，配置为根据用户级参数值和小区级参数值确定下行发射功率。
  5. 根据权利要求4所述的网络侧网元，其中，所述网络侧网元还包括：
    判断单元，配置为确定所述下行发射功率是否大于所述网络侧网元的射频最大功率；
    所述赋值单元，还配置为当所述下行发射功率大于所述网络侧网元的射频最大功率时，将所述用户级参数赋值为所述用户级参数对应的数值中次最大值，将所述小区级参数赋值为所述小区级参数对应的数值中次最大值；
    所述确定单元，还配置为根据赋值后的所述用户级参数值和小区级参数值确定下行发射功率，依次循环直至确定出的下行发射功率小于等于所述网络侧网元的射频最大功率。
  6. 根据权利要求4或5所述的网络侧网元，其中，所述确定单元包括：
    第一确定子单元，配置为根据所述用户级参数值确定ρA，其中，所述ρA为未含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；根据所述小区级参数值确定ρB，其中，所述ρB为含有导频的正交频分复用符号中数据部分对应的子载波功率和导频部分对应的子载波功率的比值；
    第二确定子单元，配置为根据所述用户级参数值、小区级参数值、ρA以及ρB确定下行发射功率。
  7. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1至3任一项所述的提高 下行发射功率的方法。
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