WO2015006926A1 - 一种发射功率控制方法、系统及发送装置 - Google Patents

一种发射功率控制方法、系统及发送装置 Download PDF

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Publication number
WO2015006926A1
WO2015006926A1 PCT/CN2013/079476 CN2013079476W WO2015006926A1 WO 2015006926 A1 WO2015006926 A1 WO 2015006926A1 CN 2013079476 W CN2013079476 W CN 2013079476W WO 2015006926 A1 WO2015006926 A1 WO 2015006926A1
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Prior art keywords
information
power
signal
transmitting
adjusted
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PCT/CN2013/079476
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English (en)
French (fr)
Inventor
�龙昊
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/079476 priority Critical patent/WO2015006926A1/zh
Priority to ES13889419.1T priority patent/ES2658405T3/es
Priority to CN201380000998.9A priority patent/CN103650602B/zh
Priority to EP13889419.1A priority patent/EP3013104B1/en
Publication of WO2015006926A1 publication Critical patent/WO2015006926A1/zh
Priority to US14/996,644 priority patent/US9860857B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • 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
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • 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
    • H04W52/02—Power saving arrangements
    • 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
    • H04W52/08—Closed loop 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or 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
    • H04W52/362—Aspects of the step size
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a transmit power control method, system, and transmitting device.
  • phased array technology has a good application prospect in the subsequent millimeter wave communication, and the beam direction is adjustable, which can resist the effects of strong wind and shaking.
  • the beam direction is adjustable, which can resist the effects of strong wind and shaking.
  • the embodiment of the invention provides a method, a system and a transmitting device for transmitting power to solve the problem that the receiving end is saturated and the power consumption is wasted.
  • a first aspect provides a method for controlling a transmit power, comprising: acquiring first information for adjusting transmit power of a first signal; acquiring power of each working channel; and adjusting step size, first information, and each work The power of the channel determines the working channel that needs to be adjusted to adjust the transmit power of the first signal transmitted.
  • determining, according to the adjustment step size, the first information, and the power of each working channel, the working channel that needs to be adjusted, to adjust the transmit power of transmitting the first signal including If the first information request increases the transmission power, the working channel that needs to be adjusted is opened; if the first information requests to reduce the transmission power, the working channel that needs to be adjusted is closed.
  • the method further includes: acquiring a phase shift of the plurality of working channels before the adjustment and a phase shift of the adjusted multiple working channels;
  • the phase shift of the adjusted plurality of working channels is different from the phase shift of the plurality of working channels before the adjustment, and the phase shift of the adjusted plurality of working channels is adjusted to make the phase shift of the adjusted plurality of working channels
  • the phase shifts of multiple working channels before adjustment are the same.
  • the first information includes ATPC request information or level information.
  • a second aspect provides a transmitting apparatus, including a transmitting apparatus, where the transmitting apparatus includes a control unit and a plurality of working channels, and the control unit acquires first information for adjusting a transmit power of transmitting the first signal, and acquires each working channel.
  • the power control unit determines the working channel to be adjusted according to the adjustment step size, the first information, and the power of each working channel to adjust the transmitting power of the transmitting device to transmit the first signal.
  • the transmitting device further includes a power source, each working channel includes a control switch, a power amplifier, and an antenna, and the power source is connected to the power amplifier through the control switch, and the antenna and the power amplifier Connected, the control end of the control switch is connected to the control unit.
  • the control unit controls the control switch of the working channel that needs to be adjusted to be closed to open the adjustment that needs to be adjusted.
  • the working channel if the first information request reduces the transmission power, the control unit controls the control switch of the working channel that needs to be adjusted to be turned off to close the working channel that needs to be adjusted.
  • the sending device further includes multiple phase shifters, the phase shifter is connected to the working channel, and the control unit acquires multiple working channels before the adjustment.
  • Phase shifting and phase shifting of the adjusted plurality of working channels if the phase shift of the adjusted plurality of working channels is different from the phase shift of the plurality of working channels before the adjusting, the control unit is adjusted by the plurality of phase shifters
  • the phase shift of the adjusted plurality of working channels is such that the phase shift of the adjusted plurality of working channels is the same as the phase shift of the plurality of working channels before the adjustment.
  • the first information includes the ATPC request information or the level information.
  • a third aspect provides a transmission power control method, including: acquiring a first signal from a transmitting device; comparing a quality of the first signal with a threshold, and generating first information according to the comparison result; and transmitting the first information to the transmitting device To adjust the transmit power of the transmitting device to transmit the first signal.
  • comparing the quality of the first signal with the threshold, and generating the first information according to the comparison result includes: if the quality of the first signal is greater than the threshold, The first information request transmitting device reduces the transmission power; if the quality of the first signal is less than the threshold, the first information requesting transmitting device increases the transmission power.
  • a fourth aspect provides an automatic transmission power control apparatus including a receiving unit, a processing unit, and a transmitting unit, the receiving unit acquiring a first signal from the transmitting device, the processing unit comparing the quality of the first signal with a threshold, and according to the comparison result The first information is generated, and the sending unit sends the first information to the transmitting device to adjust the transmitting power of the transmitting device to transmit the first signal.
  • the first information requesting transmitting device decreases the transmitting power; if the quality of the first signal is less than the threshold, The first information request transmitting means increases the transmission power.
  • a fifth aspect provides a transmission power control system, comprising: a transmitting device and an automatic transmitting power control device, wherein the transmitting device is the transmitting device of any one of the second aspect to the fourth possible implementation of the second aspect,
  • the transmission power control device is an automatic transmission power control device according to any one of the fourth aspect to the first possible implementation of the fourth aspect.
  • the present invention has the beneficial effects that the present invention acquires the power of each working channel by acquiring the first information for adjusting the transmit power of the first signal, and according to the adjustment step, the first information, and each The power of the working channel determines the working channel that needs to be adjusted to adjust the transmitting power of the first signal to avoid saturation of the automatic transmitting power control device and save energy.
  • FIG. 1 is a schematic structural diagram of a system for transmitting power control according to a first embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a transmitting apparatus in a system for transmitting power control according to a second embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a system for transmitting power control according to a third embodiment of the present invention.
  • FIG. 4 is a flow chart showing a method of controlling a transmission power according to a first embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a system for transmitting power control according to a first embodiment of the present invention.
  • the system for transmitting power control disclosed in this embodiment includes: a transmitting device 101 and an automatic transmission power control (Automatic Transmission Power Control (ATPC) device 102.
  • a transmitting device 101 includes: a transmitting device 101 and an automatic transmission power control (Automatic Transmission Power Control (ATPC) device 102.
  • ATC Automatic Transmission Power Control
  • the automatic transmission power control device 102 includes a receiving unit 104, a processing unit 105, and a transmitting unit 106.
  • the receiving unit 104 acquires the first signal from the transmitting device 101
  • the processing unit 105 is connected to the receiving unit 104, and acquires the first signal from the receiving unit 104.
  • the processing unit 105 presets a threshold, compares the quality of the first signal with the threshold, and generates first information according to the comparison result
  • the sending unit 106 acquires the first information from the processing unit 105, and transmits the first information to the transmitting device 101. .
  • the transmitting device 101 includes a control unit 107 and a plurality of working channels 108.
  • the control unit 107 acquires first information for adjusting the transmit power of the first signal from the transmitting unit 106, and acquires the power of each working channel 108.
  • the control unit 107 presets a modulation step size, and determines the working channel 108 to be adjusted according to the modulation step size, the first information, and the power of each working channel 108, so as to adjust the transmission power of the transmitting device 101 to transmit the first signal,
  • the automatic transmission power control device 102 is prevented from being saturated, saving energy.
  • the present invention also provides a system for transmitting power control of the second embodiment, which is described in detail based on the system of transmission power control disclosed in the first embodiment.
  • the transmitting apparatus 101 disclosed in this embodiment further includes a power source 109 and a plurality of phase shifters 110, wherein the phase shifter 110 is connected to the working channel 108.
  • each working channel 108 includes a control switch 111, a power amplifier 112, and an antenna 113.
  • the power source 109 is connected to the power amplifier 112 through a control switch 111 to supply power to the power amplifier 112, the power amplifier 112 is connected to the antenna 113, the control terminal of the control switch 111 is connected to the control unit 107, and the control unit 107 controls the control switch 111 to be closed or disconnected.
  • those skilled in the art may use other switching devices in place of the control switch 111, such as a triode or a field effect transistor.
  • the processing unit 105 of the automatic transmission power control device 102 compares the quality of the first signal with the threshold. If the quality of the first signal is greater than the threshold, the first information generated by the processing unit 105 requests the transmitting device 101 to reduce the transmission power; When the quality of a signal is less than the threshold, the first information generated by the processing unit 105 requests the transmitting device 101 to increase the transmission power; if the quality of the first signal is equal to the threshold, the first information generated by the processing unit 105 requests the transmitting device 101 to keep transmitting. The power is unchanged.
  • the control unit 107 acquires the power of each working channel 108 and presets an adjustment step.
  • the control unit 107 determines the working channel 108 that needs to be adjusted based on the first information, the adjustment step size, and the power of each of the working channels 108. If the first information request transmitting means 101 increases the transmission power, the control unit 107 controls the control switch 111 of the working channel 108 to be adjusted to be closed to open the working channel 108 to be adjusted. If the first information request transmitting means 101 lowers the transmission power, the control unit 107 controls the control switch 111 of the working channel 108 to be adjusted to be turned off to turn off the working channel 108 to be adjusted.
  • control unit 107 acquires the phase shift of the plurality of working channels 108 before adjustment and the phase shift of the adjusted plurality of working channels 108 from the working channel 108, and if the control unit 107 determines the phase shift of the adjusted plurality of working channels 108 Different from the phase shift of the plurality of working channels 108 before the adjustment, the control unit 107 adjusts the phase shift of the plurality of working channels 108 through the phase shifter 110 to make the phase shift of the adjusted plurality of working channels 108 and before the adjustment.
  • the phase shifts of the plurality of working channels 108 are the same.
  • the transmitting device 101 will be described in detail below by taking 16 working channels 108 as an example.
  • EIRP Effective Isotropic Radiated Power
  • the adjustment step preset by the control unit 107 is 1 dB.
  • the control unit 107 determines that two tasks need to be adjusted according to the first information, the adjustment step size, and the power of each working channel 108. Channel 108. Furthermore, the control unit 107 selects two working channels 108 to be turned off according to the array distribution and the beamforming algorithm, such that the beam direction of the transmitting device 101 is unchanged or less changed after the two working channels 108 are closed.
  • the first information is ATPC request information, wherein the automatic transmission power control device 102 carries the ATPC request information by the frame overhead.
  • the first information can also set the first information to other information, such as level information.
  • the control unit 107 of the transmitting device 101 confirms the working channel 108 that needs to be adjusted according to the first information, the adjustment step size, and the power of each working channel 108, and adjusts the work by controlling the control switch 111 of the working channel 108 that needs to be adjusted.
  • the channel 108 realizes adjusting the transmission power of the transmitting device 101 to transmit the first signal, and the cost is low, and the automatic transmission power control device 102 can be prevented from being saturated, and energy is saved.
  • FIG. 3 is a schematic structural diagram of a system for transmitting power control according to a third embodiment of the present invention.
  • the system for transmitting power control disclosed in this embodiment includes: a transmitting device 301 and an automatic transmitting power control device 302.
  • the automatic transmission power control device 302 includes a receiver 304, a processor 305, and a transmitter 306.
  • the receiver 304 acquires the first signal from the transmitting device 301
  • the processor 305 is connected to the receiver 304, and acquires the first signal from the receiver 304.
  • the processor 305 presets a threshold, compares the quality of the first signal with the threshold, and generates first information according to the comparison result.
  • the transmitter 306 acquires the first information from the processor 305, and sends the first information to the sending device 301. .
  • the sending device 301 includes a controller 307 and a plurality of working channels 308.
  • the controller 307 acquires first information for adjusting the transmit power of the first signal from the transmitter 306, and acquires the power of each working channel 308.
  • the controller 307 presets a modulation step size, and determines the working channel 308 to be adjusted according to the modulation step size, the first information, and the power of each working channel 108, so as to implement the adjustment transmitting device 301 to transmit the first signal.
  • the automatic transmission power control device 302 is prevented from being saturated, saving energy.
  • the present invention also provides a transmission power control method of the first embodiment, which is described in detail based on the transmission power control system disclosed in the first embodiment. As shown in FIG. 4, the method disclosed in this embodiment includes the following steps:
  • Step 401 The sending apparatus 101 acquires first information for adjusting transmission power of transmitting the first signal.
  • Step 402 The transmitting device 101 acquires the power of each working channel 108.
  • Step 403 The transmitting device 101 determines the working channel 108 that needs to be adjusted according to the adjustment step size, the first information, and the power of each working channel 108 to adjust the transmission power of transmitting the first signal.
  • the first information for adjusting the transmit power of the first signal and the power of each working channel 108 are obtained by the transmitting device 101, and the need is determined according to the adjustment step size, the first information, and the power of each working channel 108.
  • the adjusted working channel 108 adjusts the transmitting power of the transmitting device 101 to transmit the first signal, thereby avoiding saturation of the automatic transmitting power control device 102 and saving energy.
  • the present invention also provides a transmission power control method of the second embodiment, which is described in detail based on the transmission power control system disclosed in the second embodiment.
  • step 401 the transmitting device 101 acquires first information for adjusting the transmission power of the first signal transmitted from the automatic transmission power control device 102.
  • the automatic transmission power control device 102 compares the quality of the first signal with a preset threshold, and generates first information according to the comparison result. If the quality of the first signal is greater than the threshold, the first information generated by the automatic transmission power control device 102 requests the transmitting device 101 to reduce the transmission power; if the quality of the first signal is less than the threshold, the automatic transmission power control device 102 generates the first An information request transmitting means 101 increases the transmission power; if the quality of the first signal is equal to the threshold value, the first information generated by the automatic transmission power control means 102 requests the transmitting means 101 to keep the transmission power unchanged.
  • the transmitting device 101 presets an adjustment step size and determines the working channel 108 to be adjusted according to the first information, the adjustment step size, and the power of each working channel 108. If the first information request transmitting means 101 increases the transmission power, the transmitting means 101 opens the working channel 108 to be adjusted. If the first information request transmitting means 101 lowers the transmission power, the transmitting means 101 turns off the working channel 108 to be adjusted.
  • the transmitting device 101 acquires the phase shift of the plurality of working channels 108 before the adjustment and the phase shift of the adjusted plurality of working channels 108 from the working channel 108, and if the phase shift of the adjusted plurality of working channels 108 is more than before the adjustment The phase shifting of the working channels 108 is different, and the transmitting device 101 adjusts the phase shift of the plurality of working channels 108 so that the phase shift of the adjusted plurality of working channels 108 is the same as the phase shift of the plurality of working channels 108 before the adjustment. .
  • the present invention acquires first information for adjusting the transmit power of the first signal and power of each working channel by using the sending device, and determines according to the adjustment step size, the first information, and the power of each working channel.
  • the working channel that needs to be adjusted realizes adjusting the transmitting power of the transmitting device to transmit the first signal, has low cost, and can avoid saturation of the automatic transmitting power control device and save energy.

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Abstract

本发明公开了一种发射功率控制方法、系统及发送装置。该方法包括以下步骤：获取用于调整发送第一信号的发射功率的第一信息；获取每个工作通道的功率；根据调整步长、第一信息以及每个工作通道的功率确定需要调整的工作通道，以调整发送第一信号的发射功率。通过上述方式，本发明能够实现调整发送第一信号的发射功率，避免自动发射功率控制装置饱和，节约能源。

Description

一种发射功率控制方法、系统及发送装置
【技术领域】
本发明涉及通信技术领域，特别是涉及一种发射功率控制方法、系统及发送装置。
【背景技术】
目前，相控阵技术在后续毫米波通信中具有很好的应用前景，波束方向可调，能够抵抗大风、摇晃等影响。在设计和部署微波系统时，需要考虑雨衰等因素影响，因此通常会配置较高的发射功率，但实际运行过程中，绝大多数时间为无雨场景，若使用最高的发射功率，那么会导致接收端饱和，造成功耗浪费。
【发明内容】
本发明实施例提供了一种发射功率控制方法、系统及发送装置，以解决接收端饱和，造成功耗浪费的问题。
第一方面提供一种发射功率控制方法，其包括：获取用于调整发送第一信号的发射功率的第一信息；获取每个工作通道的功率；根据调整步长、第一信息以及每个工作通道的功率确定需要调整的工作通道，以调整发送第一信号的发射功率。
结合第一方面的实现方式，在第一种可能的实现方式中，根据调整步长、第一信息以及每个工作通道的功率确定需要调整的工作通道，以调整发送第一信号的发射功率包括：若第一信息请求提高发射功率，则打开需要调整的工作通道；若第一信息请求降低发射功率，则关闭需要调整的工作通道。
结合第一方面的第一种可能实现方式，在第二种可能的实现方式中，方法还包括：获取调整前的多个工作通道的移相和调整后的多个工作通道的移相；若调整后的多个工作通道的移相与调整前的多个工作通道的移相不相同，则调整调整后的多个工作通道的移相，以使调整后的多个工作通道的移相与调整前的多个工作通道的移相相同。
结合第一方面至第一方面的第二种可能实现方式，在第三种可能的实现方式中，第一信息包括ATPC请求信息或电平信息。
第二方面提供一种发送装置，其包括发送装置，发送装置包括控制单元以及多个工作通道，控制单元获取用于调整发送第一信号的发射功率的第一信息，并获取每个工作通道的功率，控制单元根据调整步长、第一信息以及每个工作通道的功率确定需要调整的工作通道，以调整发送装置发送第一信号的发射功率。
结合第二方面的实现方式，在第一种可能的实现方式中，发送装置还包括电源，每个工作通道包括控制开关、功率放大器以及天线，电源通过控制开关与功率放大器连接，天线与功率放大器连接，控制开关的控制端与控制单元连接。
结合第二方面的第一种可能实现方式，在第二种可能的实现方式中，若第一信息请求提高发射功率，则控制单元控制需要调整的工作通道的控制开关闭合，以打开需要调整的工作通道；若第一信息请求降低发射功率，则控制单元控制需要调整的工作通道的控制开关断开，以关闭需要调整的工作通道。
结合第二方面的第二种可能实现方式，在第三种可能的实现方式中，发送装置还包括多个移相器，移相器与工作通道连接，控制单元获取调整前的多个工作通道的移相和调整后的多个工作通道的移相，若调整后的多个工作通道的移相与调整前的多个工作通道的移相不相同，则控制单元通过多个移相器调整调整后的多个工作通道的移相，以使调整后的多个工作通道的移相与调整前的多个工作通道的移相相同。
结合第二方面至第二方面的第三种可能实现方式，在第四种可能的实现方式中，第一信息包括ATPC请求信息或电平信息。
第三方面提供一种发射功率控制方法，其包括：从发送装置获取第一信号；将第一信号的质量和阈值进行比较，并根据比较结果产生第一信息；将第一信息发送至发送装置，以调整发送装置发送第一信号的发射功率。
结合第三方面的实现方式，在第一种可能的实现方式中，将第一信号的质量和阈值进行比较，并根据比较结果产生第一信息包括：若第一信号的质量大于阈值时，则第一信息请求发送装置降低发射功率；若第一信号的质量小于阈值时，则第一信息请求发送装置提高发射功率。
第四方面提供一种自动发射功率控制装置，其包括接收单元、处理单元以及发送单元，接收单元从发送装置获取第一信号，处理单元将第一信号的质量和阈值进行比较，并根据比较结果产生第一信息，发送单元将第一信息发送至发送装置，以调整发送装置发送第一信号的发射功率。
结合第四方面的实现方式，在第一种可能的实现方式中，若第一信号的质量大于阈值时，则第一信息请求发送装置降低发射功率；若第一信号的质量小于阈值时，则第一信息请求发送装置提高发射功率。
第五方面提供一种发射功率控制系统，其包括发送装置和自动发射功率控制装置，其中，发送装置为第二方面至第二方面第四种可能的实现方式中任一项的发送装置，自动发射功率控制装置为第四方面至第四方面第一种可能的实现方式中任一项的自动发射功率控制装置。
通过上述方案，本发明的有益效果是：本发明通过获取用于调整发送第一信号的发射功率的第一信息，获取每个工作通道的功率，并根据调整步长、第一信息以及每个工作通道的功率确定需要调整的工作通道，以调整发送第一信号的发射功率，避免自动发射功率控制装置饱和，节约能源。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。其中：
图1是本发明第一实施例的发射功率控制的系统的结构示意图；
图2是本发明第二实施例的发射功率控制的系统中发送装置的结构示意图；
图3是本发明第三实施例的发射功率控制的系统的结构示意图；
图4是本发明第一实施例的一种发射功率控制方法的流程图。
【具体实施方式】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性的劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参见图1所示，图1是本发明第一实施例的发射功率控制的系统的结构示意图。如图1所示，本实施例所揭示的发射功率控制的系统包括：发送装置101以及自动发射功率控制（Automatic Transmission Power Control，ATPC）装置102。
在本实施例中，自动发射功率控制装置102包括接收单元104、处理单元105以及发送单元106。其中，接收单元104从发送装置101获取第一信号，处理单元105与接收单元104连接，并从接收单元104获取第一信号。处理单元105预设一阈值，将第一信号的质量和阈值进行比较，并根据比较结果产生第一信息，发送单元106从处理单元105获取第一信息，并将第一信息发送至发送装置101。
其中，发送装置101包括控制单元107以及多个工作通道108，控制单元107从发送单元106获取用于调整发送第一信号的发射功率的第一信息，并获取每个工作通道108的功率。控制单元107预设一调制步长，并根据调制步长、第一信息以及每个工作通道108的功率确定需要调整的工作通道108，以实现调整发送装置101发送第一信号的发射功率，能够避免自动发射功率控制装置102饱和，节约能源。
本发明还提供第二实施例的发射功率控制的系统其在第一实施例所揭示的发射功率控制的系统的基础上进行详细描述。如图2所示，本实施例所揭示的发送装置101还包括电源109以及多个移相器110，其中，移相器110与工作通道108连接。
在本实施例中，每个工作通道108均包括控制开关111、功率放大器112以及天线113。电源109通过控制开关111与功率放大器112连接，以向功率放大器112供电，功率放大器112与天线113连接，控制开关111的控制端与控制单元107连接，控制单元107控制控制开关111闭合或断开。可选地，本领域技术人员可以利用其他开关器件取代控制开关111，例如，三极管或场效应管。
自动发射功率控制装置102的处理单元105将第一信号的质量和阈值进行比较，若第一信号的质量大于阈值时，则处理单元105产生的第一信息请求发送装置101降低发射功率；若第一信号的质量小于阈值时，则处理单元105产生的第一信息请求发送装置101提高发射功率；若第一信号的质量等于阈值时，则处理单元105产生的第一信息请求发送装置101保持发射功率不变。
在本实施例中，控制单元107获取每个工作通道108的功率，并预设一调整步长。控制单元107根据第一信息、调整步长以及每个工作通道108的功率，以确定需要调整的工作通道108。若第一信息请求发送装置101提高发射功率时，则控制单元107控制需要调整的工作通道108的控制开关111闭合，以打开需要调整的工作通道108。若第一信息请求发送装置101降低发射功率时，则控制单元107控制需要调整的工作通道108的控制开关111断开，以关闭需要调整的工作通道108。
此外，控制单元107从工作通道108获取调整前多个工作通道108的移相和调整后的多个工作通道108的移相，若控制单元107判断到调整后的多个工作通道108的移相与调整前的多个工作通道108的移相不相同，则控制单元107通过移相器110调整多个工作通道108的移相，以使调整后的多个工作通道108的移相与调整前的多个工作通道108的移相相同。
以下以16个工作通道108为例进行详细描述发送装置101。
每个工作通道108的发射功率均为10dBm，每个工作通道108的天线113的增益为15dBi，可得出整个发送装置101的发射功率为12+10dBm=22dBm，整个发送装置101的天线的增益为12+15dBi=27dBi。因此，发送装置101的有效全向辐射功率（Effective Isotropic Radiated Power，EIRP）为22+27dBm=49dBm。
控制单元107预设的调整步长为1dB，当第一信息请求发送装置101降低发射功率时，控制单元107根据第一信息、调整步长以及每个工作通道108的功率确定需要调整两个工作通道108。此外，控制单元107根据阵列分布和波束成型算法选择两个待关闭的工作通道108，以使得关闭两个工作通道108后发送装置101的波束方向不变或变化较小。控制单元107通过控制两个待关闭的工作通道108的控制开关111断开，实现关闭两个工作通道108。因此，调整后发送装置101的EIRP为10+11.46+15+11.46=48dBm。
可选地，第一信息为ATPC请求信息，其中，自动发射功率控制装置102通过帧开销携带ATPC请求信息。此外，本领域的技术人员还可以将第一信息设置为其他信息，例如电平信息。
本实施例通过发送装置101的控制单元107根据第一信息、调整步长以及每个工作通道108的功率确认需要调整的工作通道108，并通过控制需要调整的工作通道108的控制开关111调整工作通道108，实现调整发送装置101发送第一信号的发射功率，成本低，并且能够避免自动发射功率控制装置102饱和，节约能源。
请参见图3所示，图3是本发明第三实施例的发射功率控制的系统的结构示意图。如图3所示，本实施例所揭示的发射功率控制的系统包括：发送装置301以及自动发射功率控制装置302。
在本实施例中，自动发射功率控制装置302包括接收器304、处理器305以及发送器306。其中，接收器304从发送装置301获取第一信号，处理器305与接收器304连接，并从接收器304获取第一信号。处理器305预设一阈值，将第一信号的质量和阈值进行比较，并根据比较结果产生第一信息，发送器306从处理器305获取第一信息，并将第一信息发送至发送装置301。
其中，发送装置301包括控制器307以及多个工作通道308，控制器307从发送器306获取用于调整发送第一信号的发射功率的第一信息，并获取每个工作通道308的功率。控制器307预设一调制步长，并根据调制步长、第一信息以及每个工作通道108的功率确定需要调整的工作通道308，以实现调整发送装置301发送第一信号的发射功率，能够避免自动发射功率控制装置302饱和，节约能源。
本发明还提供第一实施例的一种发射功率控制方法，其在第一实施例所揭示的发射功率控制的系统的基础上进行详细描述。如图4所示，本实施例所揭示的方法包括以下步骤：
步骤401：发送装置101获取用于调整发送第一信号的发射功率的第一信息；
步骤402：发送装置101获取每个工作通道108的功率；
步骤403：发送装置101根据调整步长、第一信息以及每个工作通道108的功率确定需要调整的工作通道108，以调整发送第一信号的发射功率。
本实施例通过发送装置101获取用于调整发送第一信号的发射功率的第一信息和每个工作通道108的功率，并根据调整步长、第一信息以及每个工作通道108的功率确定需要调整的工作通道108，进而实现调整发送装置101发送第一信号的发射功率，能够避免自动发射功率控制装置102饱和，节约能源。
本发明还提供第二实施例的一种发射功率控制方法，其在第二实施例所揭示的发射功率控制的系统的基础上进行详细描述。
在步骤401中，发送装置101从自动发射功率控制装置102获取用于调整发送第一信号的发射功率的第一信息。
其中，自动发射功率控制装置102将第一信号的质量和预设的阈值进行比较，并根据比较结果产生第一信息。若第一信号的质量大于阈值时，则自动发射功率控制装置102产生的第一信息请求发送装置101降低发射功率；若第一信号的质量小于阈值时，则自动发射功率控制装置102产生的第一信息请求发送装置101提高发射功率；若第一信号的质量等于阈值时，则自动发射功率控制装置102产生的第一信息请求发送装置101保持发射功率不变。
在步骤403中，发送装置101预设一调整步长，并根据第一信息、调整步长以及每个工作通道108的功率，以确定需要调整的工作通道108。若第一信息请求发送装置101提高发射功率时，则发送装置101打开需要调整的工作通道108。若第一信息请求发送装置101降低发射功率时，则发送装置101关闭需要调整的工作通道108。此外，发送装置101从工作通道108获取调整前多个工作通道108的移相和调整后的多个工作通道108的移相，若调整后的多个工作通道108的移相与调整前的多个工作通道108的移相不相同，则发送装置101调整多个工作通道108的移相，以使调整后的多个工作通道108的移相与调整前的多个工作通道108的移相相同。
综上所述，本发明通过发送装置获取用于调整发送第一信号的发射功率的第一信息和每个工作通道的功率，并根据调整步长、第一信息以及每个工作通道的功率确定需要调整的工作通道，实现调整发送装置发送第一信号的发射功率，成本低，并且能够避免自动发射功率控制装置饱和，节约能源。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (14)

  1. 一种发射功率控制方法，其特征在于，所述方法包括：
    获取用于调整发送第一信号的发射功率的第一信息；
    获取每个工作通道的功率；
    根据调整步长、所述第一信息以及所述每个工作通道的功率确定需要调整的工作通道，以调整发送所述第一信号的发射功率。
  2. 根据权利要求1所述的方法，其特征在于，所述根据调整步长、所述第一信息以及所述每个工作通道的功率确定需要调整的工作通道，以调整发送所述第一信号的发射功率包括：
    若所述第一信息请求提高发射功率，则打开所述需要调整的工作通道；
    若所述第一信息请求降低发射功率，则关闭所述需要调整的工作通道。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    获取调整前的所述多个工作通道的移相和调整后的所述多个工作通道的移相；
    若所述调整后的多个工作通道的移相与所述调整前的多个工作通道的移相不相同，则调整所述调整后的多个工作通道的移相，以使所述调整后的多个工作通道的移相与所述调整前的多个工作通道的移相相同。
  4. 根据权利要求1-3所述的方法，其特征在于，所述第一信息包括自动发射功率控制ATPC请求信息或电平信息。
  5. 一种发送装置，其特征在于，所述发送装置包括控制单元以及多个工作通道，所述控制单元获取用于调整发送第一信号的发射功率的第一信息，并获取每个工作通道的功率，所述控制单元根据调整步长、所述第一信息以及所述每个工作通道的功率确定需要调整的工作通道，以调整所述发送装置发送所述第一信号的发射功率。
  6. 根据权利要求5所述的装置，其特征在于，所述发送装置还包括电源，每个所述工作通道包括控制开关、功率放大器以及天线，所述电源通过所述控制开关与所述功率放大器连接，所述天线与所述功率放大器连接，所述控制开关的控制端与所述控制单元连接。
  7. 根据权利要求6所述的装置，其特征在于，若所述第一信息请求提高发射功率，则所述控制单元控制所述需要调整的工作通道的所述控制开关闭合，以打开所述需要调整的工作通道；若所述第一信息请求降低发射功率，则所述控制单元控制所述需要调整的工作通道的所述控制开关断开，以关闭所述需要调整的工作通道。
  8. 根据权利要求7所述的装置，其特征在于，所述发送装置还包括多个移相器，所述移相器与所述工作通道连接，所述控制单元获取调整前的所述多个工作通道的移相和调整后的所述多个工作通道的移相，若所述调整后的多个工作通道的移相与所述调整前的多个工作通道的移相不相同，则所述控制单元通过所述多个移相器调整所述调整后的多个工作通道的移相，以使所述调整后的多个工作通道的移相与所述调整前的多个工作通道的移相相同。
  9. 根据权利要求5-8所述的装置，其特征在于，所述第一信息包括ATPC请求信息或电平信息。
  10. 一种发射功率控制方法，其特征在于，所述方法包括：
    从发送装置获取第一信号；
    将所述第一信号的质量和阈值进行比较，并根据比较结果产生第一信息；
    将所述第一信息发送至所述发送装置，以调整所述发送装置发送所述第一信号的发射功率。
  11. 根据权利要求10所述的方法，其特征在于，所述将所述第一信号的质量和阈值进行比较，并根据比较结果产生第一信息包括：
    若所述第一信号的质量大于所述阈值时，则所述第一信息请求所述发送装置降低发射功率；
    若所述第一信号的质量小于所述阈值时，则所述第一信息请求所述发送装置提高发射功率。
  12. 一种自动发射功率控制装置，其特征在于，所述装置包括接收单元、处理单元以及发送单元，所述接收单元从发送装置获取第一信号，所述处理单元将所述第一信号的质量和阈值进行比较，并根据比较结果产生第一信息，所述发送单元将所述第一信息发送至所述发送装置，以调整所述发送装置发送所述第一信号的发射功率。
  13. 根据权利要求12所述的装置，其特征在于，若所述第一信号的质量大于所述阈值时，则所述第一信息请求所述发送装置降低发射功率；若所述第一信号的质量小于所述阈值时，则所述第一信息请求所述发送装置提高发射功率。
  14. 一种发射功率控制系统，其特征在于，所述系统包括发送装置和自动发射功率控制装置，其中，所述发送装置为权利要求5-9中任一项所述的发送装置，所述自动发射功率控制装置为权利要求12-13中任一项所述的自动发射功率控制装置。
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