WO2012075935A1 - 通信基站及其功率放大处理的方法 - Google Patents

通信基站及其功率放大处理的方法 Download PDF

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Publication number
WO2012075935A1
WO2012075935A1 PCT/CN2011/083567 CN2011083567W WO2012075935A1 WO 2012075935 A1 WO2012075935 A1 WO 2012075935A1 CN 2011083567 W CN2011083567 W CN 2011083567W WO 2012075935 A1 WO2012075935 A1 WO 2012075935A1
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Prior art keywords
power amplifier
real
power
service
parameter
Prior art date
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PCT/CN2011/083567
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English (en)
French (fr)
Inventor
张舜卿
徐树公
Original Assignee
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 EP11847594.6A priority Critical patent/EP2501202B1/en
Publication of WO2012075935A1 publication Critical patent/WO2012075935A1/zh
Priority to US13/571,690 priority patent/US8472997B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/52TPC using AGC [Automatic Gain Control] circuits or amplifiers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/20Automatic control
    • H03G3/30Automatic control in amplifiers having semiconductor devices
    • H03G3/3036Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/28TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/281TPC 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

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to a communication base station and a method of power amplification processing thereof. Background technique
  • a power amplifier is an important component of a network device such as a base station in a wireless system.
  • the network device needs to use a power amplifier to perform power amplification processing on the signal.
  • Power amplifiers play a key role in converting analog small signals into RF signals for transmission. Since the power amplifier is not efficient in the process of analog signal conversion, and the power amplifier lacks more reasonable utilization, it greatly affects the energy consumption of the entire base station. In order to build a greener and more energy-efficient wireless network in the future, how to improve the conversion efficiency of power amplifiers, how to make better use of power amplifiers, will become an important technological breakthrough point for energy conservation and emission reduction in the future.
  • Embodiments of the present invention provide a method and apparatus for implementing power amplification processing, which improve the efficiency of a power amplifier by jointly managing power amplifier characteristics and wireless resources.
  • a method for signal transmission power amplification processing includes: Obtaining power amplifier characteristic information and service requirement information of the power amplifier, where the service demand information includes demand information of real-time services and demand information of non-real-time services;
  • the power amplifier performs transmit power adjustment according to the adjustment parameter to obtain an amplified transmit power, and the amplified transmit power meets a requirement of the real-time traffic, and the power amplifier schedules the non-real time according to the scheduling parameter.
  • the service in the service allocates the output power demand of the non-real time service to different time periods.
  • the embodiment of the present invention further discloses a communication base station, including a power amplifier and a power scheduling device, where the power scheduling device is configured to acquire power amplifier characteristic information and service demand information of the power amplifier, and according to the service demand information. And the power amplifier characteristic information determines an adjustment parameter and a scheduling parameter of the power amplifier, where the service requirement information includes demand information of a real-time service and demand information of a non-real-time service;
  • the power amplifier performs transmit power adjustment according to the adjustment parameter to obtain an amplified transmit power, and the amplified transmit power meets a requirement of the real-time traffic, and the power amplifier schedules the non-real time according to the scheduling parameter.
  • the service in the service allocates the output power demand of the non-real time service to different time periods.
  • the power amplifier characteristic information is obtained, and the service is divided into a real-time service and a non-real-time service.
  • the scheduling is performed according to the characteristics of the power amplifier, and the distribution of the non-real-time service is appropriately scheduled according to the situation of the real-time service, so that most of the information is distributed.
  • the business will work in the high efficiency area of the amplifier, which will improve the utilization of the power amplifier.
  • FIG. 1 is a flowchart of a method according to an embodiment of the present invention.
  • Figure 2 is a reference diagram of the input and output relationship of the power amplifier.
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a base station power scheduling apparatus according to an embodiment of the present invention. detailed description
  • the traffic distribution is unbalanced, and more than half of the base station traffic is 5%. More than 50% of the traffic is concentrated on 10% of the base stations, and the load on most base stations is not very high.
  • a radio resource management method based on power amplifier characteristics utilizes power amplifier characteristics to implement effective radio resource management, and uses a radio resource management technology to call the power amplifier for different service types (such as real-time services and non-real-time services).
  • the parameter configuration makes appropriate changes to achieve the effect of improving energy consumption.
  • Methods for signal transmission power scheduling include:
  • whether the service is a real-time service can be through deep packet inspection (DPI), or whether the service is specified by the user or the system as a real-time service.
  • DPI deep packet inspection
  • S102 Determine, according to the service requirement information and the power amplifier characteristic information, an adjustment parameter and a scheduling parameter of the power amplifier.
  • the power amplifier performs transmit power adjustment according to the adjustment parameter to obtain an amplified transmit power, and the amplified transmit power meets a requirement of the real-time traffic, and the power amplifier schedules according to the scheduling parameter.
  • the service in the non-real-time service allocates the output power demand of the non-real-time service to different time periods.
  • the method of the embodiment of the present invention obtains the power amplifier characteristic information, and divides the service into a real-time service and a non-real-time service, and performs analysis according to the power amplifier characteristics during scheduling, and appropriately distributes the distribution of the non-real-time service according to the situation of the real-time service, so that the distribution of the non-real-time service is appropriately performed.
  • Most of the business will improve the utilization of power amplifiers when the amplifiers work in high-efficiency areas.
  • the radio resource management method based on the power amplifier feature may be a base station power amplifier power scheduling module or device, if the subordinate is in the base station control in the GSM/UMTS On the eNB, if it is in LTE, it is subordinate to the eNB.
  • the method also needs to design a wireless resource management method based on power amplifier characteristics, which mainly includes the following steps:
  • S201 obtains power amplifier characteristic information of the power method.
  • the environment can be detected, and the real-time information of the power amplifier monitoring can be obtained to obtain the power amplifier characteristic curve, and the input and output relationship of the power amplifier is established.
  • the input-output relationship of the amplifier is fixed. Refer to Figure 2 for a reference diagram of the input-output relationship of the amplifier.
  • the power amplifier input and output have the following relationship:
  • p—in(t) is the input power of the power amplifier
  • p—out(t) is the output power of the power amplifier
  • T is the monitoring temperature
  • W is the monitoring humidity
  • G is the power amplifier state (such as normal operation or fault)
  • BW is the power amplifier. Transmit bandwidth. According to each test data and real-time traffic, the above formula is used to determine the required transmit power p_out_rt(t).
  • business demand information includes demand information of real-time services and demand information of non-real-time services.
  • business requirements such as service type, delay requirement, and data length can be obtained, and the business is divided into real-time business and non-real business, and the demand for real-time business and non-real-time business is obtained.
  • Parameters include adjustment parameters and scheduling parameters.
  • the principle of scheduling is that the input power of the power amplifier is minimal.
  • the business randomly generating the distribution, calculates the total input power for each non-real-time service distribution.
  • the non-real-time service is randomly distributed multiple times, and the non-real-time service distribution with the smallest total input power is selected to perform the actual non-real-time service allocation.
  • we must ensure the throughput of non-real-time services to meet the needs of the business. It is to ensure that the total number of bits of non-real-time services can be transmitted while minimizing the total input power.
  • the allocation of non-real-time services is determined (in this example, B bits of non-real-time services are transmitted in N time slots):
  • Min ⁇ sum— ⁇ t l ⁇ A ⁇ N ⁇ f ⁇ (p— out— rt(t) + p_out_nrt(t)), T, W, G, BW)
  • S204 Output the scheduled result to the power amplifier to implement adjustment of the power amplifier unit.
  • the power amplifier amplifies the transmit power according to the result of the scheduling, that is, the adjustment parameter and the scheduling parameter, and the first amplified transmit power satisfies the requirement of the real-time traffic volume, and according to the requirement of the real-time traffic volume, according to the scheduling parameter Scheduling non-real-time services, scheduling different non-real-time services at different time periods, so that the power method works in a higher working range.
  • the power amplifier has the highest working efficiency in combination with the actual situation. Of course, the highest time conditions here allow for the best possible results, not the theoretical maximum, to maximize efficiency.
  • the optimization strategy in this embodiment is to determine the power amplifier characteristic curve according to the real-time state of the power amplifier, and then adjust the allocation of the non-real time service according to the power amplifier characteristic curve, so that the input power finally consumed by the power amplifier is minimized.
  • the joint scheduling of the radio resources according to the obtained power amplifier characteristics, the real-time environment of the power amplifier, and the service requirements, and obtaining the required power amplifier state and parameter adjustment results may also adopt the following methods:
  • the power amplifier characteristic curve establishes the input and output relationship of the power amplifier.
  • the required transmit power p_out_rt(t) and bandwidth BW1 are determined based on the real-time traffic.
  • the principle of scheduling is to minimize the value of the power consumption of the power amplifier.
  • the non-real-time service is allocated, and the distribution is randomly generated, and the total power consumption value of the power amplifier is calculated for each non-real-time service distribution.
  • the non-real-time service is randomly distributed multiple times, and the non-real-time service distribution with the smallest power consumption value of the power amplifier is selected to perform actual non-real-time service allocation.
  • the allocation of non-real-time services is determined (in this example, B bits of non-real-time services are transmitted in N time slots):
  • p-out-nrt(t) and BW2 are the transmit power and the occupied bandwidth of the non-real-time service
  • both are optimization parameters
  • g(t) is the channel gain
  • B is the total amount of non-real-time services.
  • the output power and immediate working point of the amplifier are determined based on the real-time service and non-real-time service allocation.
  • the optimization strategy in this embodiment is to first determine a part of the real-time state of the power amplifier (mainly considering the bandwidth factor, because the temperature, humidity and other factors can be directly determined, and the bandwidth needs to be adjusted together with the power), and then according to the non-real-time business situation,
  • the power amplifier configuration (bandwidth and required transmit power) is adjusted to minimize the input power consumed by the amplifier.
  • the bandwidth as a factor affecting the power amplifier characteristic curve can also be adjusted at the same time.
  • the process of joint adjustment of power amplifier characteristics and power amplifier output power is used to minimize the value of power amplifier power consumption.
  • the joint scheduling of the radio resources according to the obtained power amplifier characteristics, the real-time environment of the power amplifier, and the service requirements, and obtaining the required power amplifier state and parameter adjustment results may also adopt the following methods:
  • the principle of scheduling is to minimize the amount of heat that the power amplifier outputs to the outside world.
  • the total amount of heat per non-real-time service distribution is calculated to be minimum.
  • Repeat more Sub-randomly distributed non-real-time services selecting the non-real-time service distribution with the smallest total heat to perform the actual allocation of non-real-time services.
  • the allocation of non-real-time services is determined (in this example, B bits of non-real-time services are transmitted in N time slots):
  • Min ⁇ sum_ ⁇ t l ⁇ A ⁇ N ⁇ [ fl((p_out_rt(t) + p_out_nrt(t)), T, W, G, BW) - p out rt(t) - p out nrt(t) ]
  • p-out-nrt(t) is the transmit power of the non-real-time service
  • g(t) is the channel gain
  • B is the total amount of the non-real-time service.
  • the output power and immediate working point of the amplifier are determined based on the real-time service and non-real-time service allocation.
  • the optimization strategy is to determine the power amplifier characteristic curve according to the real-time state of the power amplifier, and then adjust the distribution of the non-real-time service according to the power amplifier characteristic curve, so that the power discharged by the power amplifier to the outside is the smallest, wherein the output heat is subtracted from the input power by the input power. obtain.
  • the joint scheduling of the radio resources according to the obtained power amplifier characteristics, the real-time environment of the power amplifier, and the service requirements, and obtaining the required power amplifier state and parameter adjustment results may also adopt the following methods:
  • the principle of scheduling is to make the peak-to-average ratio of the power amplifier to be the smallest.
  • the non-real-time service is allocated, and the distribution is randomly generated, and the peak-to-average ratio of the power amplifiers distributed for each non-real-time service is calculated. Repeat the random distribution of non-real-time services multiple times, and select the peaks of the power amplifiers to allocate the actual non-real-time services than the minimum non-real-time service distribution.
  • the peak-to-average ratio of the power amplifier is: p—in—max I p_in_avg
  • P_out_nrt(t) is the transmit power of the non-real-time service
  • g(t) is the channel gain
  • B is the total amount of non-real-time services.
  • the output power and instantaneous operating point of the amplifier are determined based on the real-time service and non-real-time service allocation.
  • the optimization strategy in this embodiment determines the power amplifier characteristic curve according to the real-time state of the power amplifier, and then adjusts the distribution of the non-real time service according to the power amplifier characteristic curve, so that the peak-to-average ratio of the power amplifier is minimized.
  • the joint scheduling of the radio resources according to the obtained power amplifier characteristics, the real-time environment of the power amplifier, and the service requirements, and obtaining the required power amplifier state and parameter adjustment results may also adopt the following methods:
  • the output power p_out_min corresponding to the low efficiency critical point is determined, and the output power p_out_max corresponding to the high efficiency critical point is set according to the power amplifier characteristic curve.
  • the required transmit power p_out_rt(t) is determined according to the real-time service, and the required transmit power p-nrt is determined according to the current non-real-time service.
  • the output power and immediate working point of the amplifier are determined based on the real-time service and non-real-time service allocation.
  • the optimization strategy in this embodiment determines the power amplifier characteristic curve according to the real-time state of the power amplifier, and then determines two thresholds of the transmission power (high efficiency critical point and low efficiency critical point) according to the power amplifier characteristic curve.
  • the actual output power of the non-real-time service is adjusted according to two thresholds: when it is higher than the high efficiency threshold, some non-real-time services are stored in the cache; when it is lower than the inefficiency threshold, some non-real-time is read from the cache. business.
  • the joint scheduling of the radio resources according to the obtained power amplifier characteristics, the real-time environment of the power amplifier, and the service requirements, and obtaining the required power amplifier state and parameter adjustment results may also adopt the following methods:
  • the output power p_out_min corresponding to the low efficiency critical point is determined according to the power amplifier characteristic curve.
  • the required transmit power p_out_rt(t) is determined according to the real-time service, and the required transmit power p-nrt is determined according to the non-real-time service at that time.
  • the output power and immediate working point of the amplifier are determined based on the real-time service and non-real-time service allocation.
  • the optimization strategy in this embodiment determines the power amplifier characteristic curve according to the real-time state of the power amplifier, and then determines the transmission power low efficiency threshold (point) according to the power amplifier characteristic curve.
  • the actual output power of the non-real-time service is adjusted according to this threshold. When below the threshold, some non-real time traffic is read from the cache.
  • the joint scheduling of the radio resources according to the acquired power amplifier characteristics, the real-time environment of the power amplifier, and the service requirements, and obtaining the required power amplifier state and parameter adjustment results may also adopt the following methods: Obtain the power amplifier characteristic curve, establish the power amplifier input and output relationship. Determine the required transmit power p_out_rt(t) according to the real-time service.
  • the output power p_out_max corresponding to the high efficiency critical point is determined according to the power amplifier characteristic curve.
  • the required transmit power p_out_rt(t) is determined according to the real-time service, and the required transmit power p-nrt is determined according to the current non-real-time service.
  • the output power and immediate working point of the amplifier are determined based on the real-time service and non-real-time service allocation.
  • the optimization strategy in this embodiment determines the power amplifier characteristic curve according to the real-time state of the power amplifier, and then determines the high efficiency critical value (point) of the transmission power according to the power amplifier characteristic curve.
  • the actual output power of the non-real time service is adjusted according to this threshold. When the threshold is exceeded, some non-real-time services are stored in the cache.
  • the scheduling parameter is configured to allocate, by the power amplifier, the power amplifier output power requirement of the non-real time service to different time segments according to the power amplifier characteristic information, so that the power amplifier is configured to meet the real-time service power requirement. Work in the most efficient amplification range.
  • the power amplifier characteristic information is obtained, and the service is divided into a real-time service and a non-real-time service.
  • the scheduling is performed according to the characteristics of the power amplifier, and the distribution of the non-real-time service is appropriately scheduled according to the situation of the real-time service, which can make the maximum Some of the services will increase the utilization rate of the amplifiers when the amplifiers work in high efficiency areas.
  • the implementation of the present invention can be performed on a power scheduling device of a base station power amplifier, for example, where GSM/UMTS is deployed on a base station controller and LTE is deployed on an eNB.
  • the present invention implements a power scheduling apparatus having a base station power amplifier in which various embodiments of the above method can be implemented in conjunction with the power scheduling apparatus and amplifier.
  • the base station 30 of the embodiment of the present invention includes a power amplifier 302 and a power scheduling device 304.
  • the power amplifier 302 performs a method for transmitting power
  • the power scheduling device 304 is configured to obtain power amplifier characteristic information and service demand information of the power amplifier, where
  • the service requirement information includes demand information of the real-time service and demand information of the non-real-time service; and determining adjustment parameters and scheduling parameters of the power amplifier according to the service demand information and the power amplifier characteristic information.
  • the power amplifier 302 performs transmit power adjustment according to the adjustment parameter to obtain an amplified transmit power, and the amplified transmit power satisfies the requirement of the real-time traffic, and the power amplifier schedules services in the non-real-time service according to the scheduling parameter, and the non-real-time service is not
  • the output power demand of the real-time service is allocated to different time periods.
  • the first amplified transmit power satisfies the requirement of the real-time traffic, and under the requirement of the real-time traffic, the non-real-time service is scheduled according to the scheduling parameter, and different scheduling is performed in different time periods.
  • Non-real-time services enable the power method to operate in a higher working range. Under the guidance of this program, the power amplifier has the highest working efficiency in combination with the actual situation. Of course, the highest time conditions here allow for the best possible results, not the theoretical maximum, to increase efficiency as much as possible.
  • a power scheduling device 304 for a base station power amplifier includes:
  • the information obtaining module 3041 is configured to obtain power amplifier characteristic information and service demand information, where the service demand information includes demand information of a real-time service and demand information of a non-real-time service.
  • the power amplifier characteristic information obtained by the further information obtaining module 3041 indicates the working efficiency of the power amplifier in the working state, and the information acquiring module 3041 determines the power source characteristic information according to the corresponding relationship between the input power and the output power of the power amplifier according to the environmental parameter, where the power amplifier characteristic information is obtained.
  • the environment parameter includes: an ambient temperature or an ambient humidity or the information acquisition module 3041 determines the power amplifier characteristic information according to the correspondence between the input power and the output power of the power amplifier according to the service parameter, wherein the environmental parameter includes a power amplifier state or an emission bandwidth.
  • the parameter adjustment unit 3043 is configured to determine an adjustment parameter and a scheduling parameter of the power amplifier according to the service requirement information and the power amplifier characteristic information.
  • the information acquisition module 3041 determines the input power and output power of the power amplifier according to the environmental parameters.
  • the corresponding relationship obtains power amplifier characteristic information, and the corresponding relationship represents an operating efficiency of the power amplifier in an operating state, wherein the environmental parameter includes: an ambient temperature or an ambient humidity or a power amplifier state or an emission bandwidth.
  • the further parameter adjustment unit 3043 is further configured to determine a low efficiency threshold according to the power amplifier characteristic information; and further determine the scheduled non-real time service in the non-real time service, and the real time service and the scheduled non-real time service output The sum of the power demand values is not less than the low efficiency threshold of the power amplifier.
  • Another implementation parameter adjustment unit 3043 is further configured to determine a high efficiency threshold according to the power amplifier characteristic information; and further determine a scheduled non-real time service in the non-real time service, and the real time service and the scheduled non The sum of the real-time service output power demand values is not greater than the high efficiency threshold.
  • the parameter adjustment unit 3043 Determining, by the parameter adjustment unit 3043, the scheduling parameter of the power amplifier according to the service requirement information and the power amplifier characteristic information, determining the scheduling parameter to minimize a sum of input power of the power amplifier or minimizing power consumption of the power amplifier Or determining a peak-to-average ratio; determining an adjustment parameter of the power amplifier according to the service requirement information and the power amplifier characteristic information, so that the power amplifier meets at least the requirement of the real-time traffic according to the amplified transmit power.
  • the adjustment parameters and scheduling parameters determined by the parameter adjustment unit 3043 cause the power amplifier to operate in the most efficient amplification interval.
  • the power scheduling device of the base station power amplifier in the embodiment of the present invention obtains the power amplifier characteristic information, and divides the service into a real-time service and a non-real-time service, and performs analysis according to the power amplifier characteristics during scheduling, and appropriately schedules the non-real-time service according to the situation of the real-time service.
  • the distribution situation can make most of the business work in the high efficiency area of the power amplifier, and improve the utilization rate of the power amplifier.
  • the embodiment of the invention also discloses a base station of a communication system, which can be used in a GSM/UMTS or LTE system.
  • the base station is a communication base station that can perform the methods in the method embodiments, and is used to perform power amplifier control by using the method in the method embodiment, including the base station in the foregoing device embodiment.
  • Power scheduling device for the power amplifier is a communication base station that can perform the methods in the method embodiments, and is used to perform power amplifier control by using the method in the method embodiment, including the base station in the foregoing device embodiment.
  • the base station in the embodiment of the present invention obtains the power amplifier characteristic information, and divides the service into a real-time service and a non-real-time service.
  • the scheduling is performed according to the characteristics of the power amplifier, and the distribution of the non-real-time service is appropriately scheduled according to the situation of the real-time service.
  • Most of the business will improve the utilization of power amplifiers when the amplifiers work in high-efficiency areas.

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Description

通信基站及其功率放大处理的方法 本申请要求了 2010年 12月 6 日提交的, 申请号为 201010574543.6, 发 明名称为 "通信基站及其功率放大处理的方法" 的中国申请的优先权, 其全 部内容通过引用结合在本申请中。 技术领域
本发明实施例涉及通信技术, 尤其涉及通信基站及其功率放大处理的方 法。 背景技术
功率放大器, 通常简称功放, 是无线系统中网络设备比如基站的重要组 成部分, 网络设备需要利用功率放大器对信号进行功率放大处理, 。
功率放大器承担着将模拟小信号转化到发射用的射频信号的关键作用。 由于功率放大器在进行模拟信号转换的过程中效率并不高, 对功率放大器也 缺乏更合理的利用, 因此在很大程度上影响了整个基站的能量消耗。 为了构 建未来更加绿色更加节能的无线网络, 如何提高功放的转换效率, 如何更加 合理的利用好功放, 将成为未来节能减排的重要技术突破点。
实际应用中无线业务量的不均衡特性使得功放需要有很大一段时间工作 在低负荷、 低功放转换效率的区域, 使得功放极少能够工作在重负载、 高转 换效率的区域内, 另一方面在低负荷区进行传统的无线资源管理时缺乏对功 放特性的认识, 不能很好的管理和利用好功放的特性, 造成了功放利用率的 低下。
发明内容
本发明实施例提供实现功率放大处理的方法和装置, 通过对功放特性和 无线资源的联合管理, 提高功率放大器的效率。
本发明实施例的一种信号发射功率放大处理的方法, 包括: 获取功率放大器的功放特性信息及业务需求信息, 其中所述业务需求信 息包括实时业务的需求信息和非实时业务的需求信息;
根据所述业务需求信息及所述功放特性信息确定所述功率放大器的调节 参数和调度参数;
所述功率放大器根据所述调节参数进行发射功率调节获得放大后的发射 功率, 并且所述放大后的发射功率满足所述实时业务量的要求, 该功率放大 器根据所述调度参数调度所述非实时业务中的业务, 将所述非实时业务的输 出功率需求分配到不同时间段。
进一步, 本发明实施例还公开了一种通信基站, 包括功率放大器及功率 调度装置, 所述功率调度装置用于获取所述功率放大器的功放特性信息及业 务需求信息, 并根据所述业务需求信息及所述功放特性信息确定所述功率放 大器的调节参数和调度参数, 其中所述业务需求信息包括实时业务的需求信 息和非实时业务的需求信息;
所述功率放大器根据所述调节参数进行发射功率调节获得放大后的发射 功率, 并且所述放大后的发射功率满足所述实时业务量的要求, 该功率放大 器根据所述调度参数调度所述非实时业务中的业务, 将所述非实时业务的输 出功率需求分配到不同时间段。
本发明实施例中获得功放特性信息, 并将业务分为实时业务和非实时业 务, 在调度时会根据功放特性进行分析根据实时业务的情况适当的调度非实 时业务的分布情况, 使得绝大部分业务将在功放工作在效率较高的区域下, 提高了功放的利用率。
附图说明
图 1为本发明实施例的方法流程图。
图 2为功放输入输出关系的参考图。
图 3为本发明实施例的基站的结构示意图。
图 4为本发明实施例的基站功率调度装置的结构示意图。 具体实施方式
在现有网络的典型场景下, 业务量的分布失衡, 有一半以上的基站业务 量在 5 %—下。 约 50 %以上的业务量集中在 10 %的基站上, 而绝大多数基站的 负载并不是很高。
本发明实施例基于功放特性的无线资源管理方法, 利用功放特性, 实现 有效的无线资源管理,并针对不同的业务类型(例如实时业务和非实时业务), 利用无线资源管理技术对功放的调用和参数配置做出适当的变化, 达到提高 能耗利用率的效果。
参阅图 1 , 本发明实施例信号发射功率调度的方法流程图。 信号发射功 率调度的方法包括:
5101 , 获取功放特性信息及业务需求信息, 其中所述业务需求信息包括 实时业务的需求信息和非实时业务的需求信息。
在实际的应用中获取业务是否为实时业务可以通过深度包检测 (DPI ) , 或者由用户或者系统指定业务是否为实时业务。
5102, 根据所述业务需求信息及所述功放特性信息确定所述功率放大器 的调节参数和调度参数。
5103 , 所述功率放大器根据所述调节参数进行发射功率调节获得放大后 的发射功率, 并且所述放大后的发射功率满足所述实时业务量的要求, 该功 率放大器根据所述调度参数调度所述非实时业务中的业务, 将所述非实时业 务的输出功率需求分配到不同时间段。
本发明实施例的方法通过获得功放特性信息, 并将业务分为实时业务和 非实时业务, 在调度时会根据功放特性进行分析根据实时业务的情况适当的 调度非实时业务的分布情况, 使得绝大部分业务将在功放工作在效率较高的 区域下, 提高了功放的利用率。
本发明实施例基于功放特性的无线资源管理方法, 执行本方法的可以是 一种基站功放功率调度模块或装置, 如果在 GSM/UMTS中是部属在基站控制 器上, 如果在 LTE中则是部属在 eNB上。 该方法除了需要增加基于功放特性管 理, 还需要对基于功放特性的无线资源管理方式进行流程设计, 主要包括下 面几个步骤:
S201获得功率方法器的功放特性信息。
进一步在实施中还可以对环境进行检测, 获得功放监测的即时信息 获得功放特性曲线, 建立功放输入输出关系。 对于功率放大器来讲, 环 境温度与环境湿度都会影响其输入输出的关系。 对于特定的温度下, 功放的 输入输出关系是一定的, 参阅图 2, 功放输入输出关系的参考图。
功放输入输出存在如下关系:
p_in(t) = f(p_out(t),T,W,G,BW),
其中 p— in(t)为功放输入功率, p— out(t)为功放输出功率, T为监测温度, W 为监测湿度, G为功放状态 (例如正常工作或者出现故障) , BW为功放的发 射带宽。 根据各检测数据及实时业务量带入上述公式确定所需的发射功率 p— out— rt(t)。
当然根据实际需要可以选择忽略其中某个参数的影响, 认为其为恒定值 或者零。
5202, 获得业务需求信息, 其中业务需求信息包括实时业务的需求信息 和非实时业务的需求信息。 在实施中可以获得业务类型、 时延需求、 数据长 度等业务需求, 并将业务分为实时业务和非实业务, 并获得实时业务和非实 时业务的需求量。
在实施中上述各种信息的获得顺序可以调整, 其顺序不会影响后续的实 施。
5203 , 根据获取的功放特性、 功放实时环境和业务需求进行无线资源的 联合调度, 获取所需的功放状态和参数调整结果。 参数包括调节参数和调度 参数。
调度的原则是功率放大器的输入功率最小。 在本实施例通过分配非实时 业务, 随机产生分布, 计算每次非实时业务分布总的输入功率。 重复多次随 机分布非实时业务, 选择总输入功率最小的非实时业务分布进行实际的非实 时业务的分配。 同时还要保证非实时业务的吞吐率, 满足业务的需求。 就是 在使总输入功率最小化的同时保证能够传完非实时业务总的比特数。
根据下面的优化问题, 确定非实时业务的分配情况(本例中用 N个时隙传 完非实时业务的 B个 bit ) :
min \sum— {t=l }A{N}f ^(p— out— rt(t) + p_out_nrt(t)),T,W,G,BW)
subject to \sum_{t=l }A{N}\log(l + p— out— nrt(t) g(t)) = B 其中, p— out— nrt(t)为非实时业务的发射功率, 为优化参数, g(t)为信道增 益, B为非实时业务的总量。 根据实时业务和非实时业务分配的情况, 确定功 放的输出功率和即时工作点。
S204, 将调度的结果输出到功放, 实现对功放单元的调节。
功率放大器根据调度的结果, 即调节参数和调度参数对发射功率进行放 大, 首先放大后的发射功率满足所述实时业务量的要求, 在能够满足所述实 时业务量的要求下, 根据调度参数来调度非实时业务, 在各个不同的时间段 调度不同的非实时业务, 使得功率方法器工作在较高的工作区间。 在本方案 的指导下, 结合实际情况使得功率放大器的工作效率最高。 当然这里的最高 时条件允许的尽量好的效果而不是理论上的最高, 尽可能的提高效率。
在本实施例中的优化策略是根据功放的实时状态确定功放特性曲线, 然 后根据功放特性曲线调整非实时业务的分配情况, 使得功放最终消耗的输入 功率最小。
进一步的, 作为一个新的实施例, 在根据获取的功放特性、 功放实时环 境和业务需求进行无线资源的联合调度, 获取所需的功放状态和参数调整结 果还可以采用如下的方法:
首先功放特性曲线, 建立功放输入输出关系。 根据实时业务确定所需的 发射功率 p— out— rt(t)和带宽 BW1。 调度的原则是最小化功放功率消耗的值。 在 本实施例通过分配非实时业务, 随机产生分布, 计算每次非实时业务分布总 的功放功率消耗值。 重复多次随机分布非实时业务, 选择功放功率消耗值最 小的非实时业务分布进行实际的非实时业务的分配。 同时还要保证非实时业 务的吞吐率, 满足业务的需求。 就是在使总输入功率最小化的同时保证能够 传完非实时业务总的比特数。
根据下面的优化问题, 确定非实时业务的分配情况(本例中用 N个时隙传 完非实时业务的 B个 bit ) :
min \sum_ {t= 1 } Λ {N} f- 1 ((p_out_rt(t) + p— out— nrt(t)), T, W, G, BW1 + BW2) subject to \sum_ {t= 1 } Λ {N} B W2\log( 1 + p— out— nrt(t) g(t)) = B
其中, p— out— nrt(t)和 BW2为非实时业务的发射功率和所占带宽, 均为优 化参数, g(t)为信道增益, B为非实时业务的总量。
根据实时业务和非实时业务分配的情况, 确定功放的输出功率和即时工 作点。
本实施例中的优化策略是先确定功放的部分实时状态 (主要考虑除带宽 因素外, 因为温度,湿度等因素可以直接确定, 而带宽需要合功率一起调节), 然后根据非实时的业务情况,综合调整功放的配置(带宽和所需的发射功率), 使得功放最终消耗的输入功率最小。 本实施中带宽作为影响功放特性曲线的 因素, 也可以同时被调整。 通过一个功放特性和功放输出功率联合调整的过 程, 以最小化功放功率消耗的值。
进一步的, 作为一个新的实施例, 在根据获取的功放特性、 功放实时环 境和业务需求进行无线资源的联合调度, 获取所需的功放状态和参数调整结 果还可以采用如下的方法:
获得功放特性曲线, 建立功放输入输出关系 .根据实时业务确定所需的发 射功率 p— out— rt(t).
调度的原则是使得功放向外界输出的热量最小。 在本实施例通过分配非 实时业务, 随机产生分布, 计算每次非实时业务分布总的热量最小。 重复多 次随机分布非实时业务, 选择总的热量最小的非实时业务分布进行实际的非 实时业务的分配。 同时还要保证非实时业务的吞吐率, 满足业务的需求。 就 是在使总输入功率最小化的同时保证能够传完非实时业务总的比特数。
根据下面的优化问题, 确定非实时业务的分配情况(本例中用 N个时隙传 完非实时业务的 B个 bit ) :
min \sum_{t=l }A{N} [ f-l((p_out_rt(t) + p_out_nrt(t)), T, W, G, BW) - p out rt(t) - p out nrt(t) ]
subject to \sum_{t=l }A{N} \log(l + p— out— nrt(t) g(t)) = B
其中, p— out— nrt(t)为非实时业务的发射功率, g(t)为信道增益, B为非实 时业务的总量。
根据实时业务和非实时业务分配的情况, 确定功放的输出功率和即时工 作点。
本实施例中优化策略是根据功放的实时状态确定功放特性曲线, 然后根 据功放特性曲线调整非实时业务的分配情况, 使得功放向外界输出的热量最 小, 其中输出热量通过输入功率减去输出功率来获得。
进一步的, 作为一个新的实施例, 在根据获取的功放特性、 功放实时环 境和业务需求进行无线资源的联合调度, 获取所需的功放状态和参数调整结 果还可以采用如下的方法:
获得功放特性曲线, 建立功放输入输出关系 .根据实时业务确定所需的发 射功率 p— out— rt(t). 调度的原则是使得功放的峰均比最小。 在本实施例通过分 配非实时业务, 随机产生分布, 计算每次非实时业务分布的功放的峰均比。 重复多次随机分布非实时业务, 选择功放的峰均比最小的非实时业务分布进 行实际的非实时业务的分配。 同时还要保证非实时业务的吞吐率, 满足业务 的需求。 就是在使总输入功率最小化的同时保证能够传完非实时业务总的比 特数。
根据下面的优化问题, 确定非实时业务的分配情况(本例中用 N个时隙传 完非实时业务的 B个 bit ) : min p— in— max I p_in_avg
其中, 功放的峰均比为: p— in— max I p_in_avg
整个周期的平均 PA输入功率:
p_in_avg = \sum_{t=l }A{N} [ f-l((p— out— rt(t) + p— out— nrt(t)), T, W, G, BW) ]
/ N
整个周期的最大发射功率:
p— in— max = max { f-l((p_out_rt(t) + p_out_nrt(t)), T, W, G, BW) } subject to \sum_{t=l }A{N} \log(l + p— out— nrt(t) g(t)) = B
p— out— nrt(t)为非实时业务的发射功率, g(t)为信道增益, B为非实时业务 的总量。 根据实时业务和非实时业务分配的情况, 确定功放的输出功率和即 时工作点。
本实施例中的优化策略是根据功放的实时状态确定功放特性曲线, 然后 根据功放特性曲线调整非实时业务的分配情况, 使得功放的峰均比最小。
进一步的, 作为一个新的实施例, 在根据获取的功放特性、 功放实时环 境和业务需求进行无线资源的联合调度, 获取所需的功放状态和参数调整结 果还可以采用如下的方法:
获得功放特性曲线, 建立功放输入输出关系 .根据实时业务确定所需的发 射功率 p— out— rt(t).
根据功放特性曲线确定低效率临界点对应的输出功率 p— out— min, 根据功 放特性曲线设定高效率临界点对应的输出功率 p— out— max。
根据实时业务确定所需的发射功率 p— out— rt(t), 根据当时的非实时业务确 定所需的发射功率 p— nrt。
如果 p— out— rt(t) + p_nrt > p— out— max时, 将部分非实时业务放入緩存设备, 直至非实时业务的实际发射功率 p— out— nrt(t)满足 p— out— rt(t) + p— out— nrt(t) <= p— out— max; 如果 p— out— rt(t) + p_nrt < p— out— min时, 从緩存设备中读取非实时 业务,直至非实时业务的实际发射功率 p— out— nrt(t)满足 p— out— rt(t) + p— out— nrt(t) >= _out_min;
根据实时业务和非实时业务分配的情况, 确定功放的输出功率和即时工 作点。 本实施例中的优化策略是根据功放的实时状态确定功放特性曲线, 然 后根据功放特性曲线确定发射功率的两个阈值(高效率临界点和低效率临界 点) 。 非实时业务的实际输出功率根据两个阈值进行调整: 当高于高效率临 界点时, 向緩存中存入部分非实时业务; 当低于低效率临界点时, 从緩存中 读取部分非实时业务。
进一步的, 作为一个新的实施例, 在根据获取的功放特性、 功放实时环 境和业务需求进行无线资源的联合调度, 获取所需的功放状态和参数调整结 果还可以采用如下的方法:
获得功放特性曲线, 建立功放输入输出关系 .根据实时业务确定所需的发 射功率 p— out— rt(t).
根据功放特性曲线确定低效率临界点对应的输出功率 p— out— min。 根据实 时业务确定所需的发射功率 p— out— rt(t) , 根据当时的非实时业务确定所需的发 射功率 p— nrt。
如果 p— out— rt(t) + p_nrt < p— out— min时,从緩存设备中读取非实时业务,直 至非实时业务的实际发射功率 _0 _1 11(1)满足 p_out_rt(t) + p_out_nrt(t) >= p— out— min;
根据实时业务和非实时业务分配的情况, 确定功放的输出功率和即时工 作点。 本实施例中的优化策略是根据功放的实时状态确定功放特性曲线, 然 后根据功放特性曲线确定发射功率低效率临界值(点) 。 非实时业务的实际 输出功率根据这个阈值进行调整。 当低于阈值时, 从緩存中读取部分非实时 业务。
进一步的, 作为一个新的实施例, 在根据获取的功放特性、 功放实时环 境和业务需求进行无线资源的联合调度, 获取所需的功放状态和参数调整结 果还可以采用如下的方法: 获得功放特性曲线, 建立功放输入输出关系 .根据实时业务确定所需的发 射功率 p— out— rt(t).
根据功放特性曲线确定高效率临界点对应的输出功率 p— out— max。 根据实 时业务确定所需的发射功率 p— out— rt(t), 根据当时的非实时业务确定所需的发 射功率 p— nrt。
如果 p— out— rt(t) + p_nrt > p— out— max时, 将部分非实时业务放入緩存设备, 直至非实时业务的实际发射功率 p— out— nrt(t)满足 p— out— rt(t) + p— out— nrt(t) <= p— out— max
根据实时业务和非实时业务分配的情况, 确定功放的输出功率和即时工 作点。 本实施例中的优化策略是根据功放的实时状态确定功放特性曲线, 然 后根据功放特性曲线确定发射功率的高效率临界值(点) 。 非实时业务的实 际输出功率根据这个阈值进行调整。 当高于阈值时, 向緩存中存入部分非实 时业务。
衡各项指标。
上述的各个实施例, 调度参数目标是用于功率放大器在满足所述实时业 务功率需求的情况下根据所述功放特性信息将非实时业务的功放输出功率需 求分配到不同时间段使得所述功率放大器工作在效率最高的放大区间。
各发明实施例中获得功放特性信息, 并将业务分为实时业务和非实时业 务, 在调度时会根据功放特性进行分析根据实时业务的情况适当的调度非实 时业务的分布情况, 可以使得绝大部分业务将在功放工作在效率较高的区域 下, 提高了功放的利用率。
本发明的实施可以在一种基站功放的功率调度装置上执行, 例如在 GSM/UMTS是部署在基站控制器上,在 LTE是部署在 eNB上。本发明实施的上 具有一个基站功放的功率调度装置, 在这个功率调度装置和放大器配合可以 执行上述方法的各个实施例。 参阅图 3 , 本发明实施例的基站 30, 包括功率放大器 302及功率调度装置 304, 功率放大器 302对发射功率进行方法, 功率调度装置 304用于获取功率放 大器的功放特性信息及业务需求信息, 其中业务需求信息包括实时业务的需 求信息和非实时业务的需求信息; 根据业务需求信息及所述功放特性信息确 定功率放大器的调节参数和调度参数。 功率放大器 302根据所述调节参数进行 发射功率调节获得放大后的发射功率, 并且放大后的发射功率满足所述实时 业务量的要求, 该功率放大器根据调度参数调度非实时业务中的业务, 将非 实时业务的输出功率需求分配到不同时间段。
对于功率放大器 302 , 首先放大后的发射功率满足所述实时业务量的要 求, 在能够满足所述实时业务量的要求下, 根据调度参数来调度非实时业务, 在各个不同的时间段调度不同的非实时业务, 使得功率方法器工作在较高的 工作区间。 在本方案的指导下, 结合实际情况使得功率放大器的工作效率最 高。 当然这里的最高时条件允许的尽量好的效果而不是理论上的最高, 尽可 能的提高效率。
参阅图 4, 一种基站功放的功率调度装置 304, 包括:
信息获取模块 3041 , 用于获取功放特性信息及业务需求信息, 其中所述 业务需求信息包括实时业务的需求信息和非实时业务的需求信息。
进一步信息获取模块 3041获得的功放特性信息表示工作状态下所述功率 放大器的工作效率, 信息获取模块 3041根据环境参数确定功率放大器的输入 功率和输出功率的对应关系获得所述功放特性信息, 其中所述环境参数包括: 环境温度或者环境湿度或者信息获取模块 3041根据业务参数确定功率放大器 的输入功率和输出功率的对应关系获得所述功放特性信息, 其中所述环境参 数包括功放状态或者发射带宽。
参数调节单元 3043 , 用于根据所述业务需求信息及所述功放特性信息确 定所述功率放大器的调节参数和调度参数。
信息获取模块 3041根据环境参数确定功率放大器的输入功率和输出功率 的对应关系获得功放特性信息, 所述对应关系表示工作状态下功率放大器的 工作效率, 其中所述环境参数包括: 环境温度或者环境湿度或功放状态或者 发射带宽。
进一步参数调节单元 3043还用于根据所述功放特性信息确定低效率临界 值; 并进一步确定所述非实时业务中被调度的非实时业务, 并且所述实时业 务与所述调度的非实时业务输出功率需求值之和不小于所述功率放大器的低 效率临界值。
再一种实现参数调节单元 3043还用于根据所述功放特性信息确定高效率 临界值; 并进一步确定所述非实时业务中被调度的非实时业务, 并且所述实 时业务与所述调度的非实时业务输出功率需求值之和不大于所述高效率临界 值。
参数调节单元 3043根据业务需求信息及所述功放特性信息确定所述功率 放大器的调度参数包括, 确定所述调度参数使得所述功率放大器输入功率的 总和最小化或者所述功率放大器的功率消耗最小化或者峰均比最小化; 根据 所述业务需求信息及所述功放特性信息确定所述功率放大器的调节参数使得 所述功率放大器根据放大后的发射功率至少满足所述实时业务量的要求。 总 之, 参数调节单元 3043确定的调节参数和调度参数使得所述功率放大器工作 在效率最高的放大区间。 本发明实施例中的基站功放的功率调度装置获得功放特性信息, 并将业 务分为实时业务和非实时业务, 在调度时会根据功放特性进行分析根据实时 业务的情况适当的调度非实时业务的分布情况, 可以使得绝大部分业务将在 功放工作在效率较高的区域下, 提高了功放的利用率。
同时本发明实施例还公开一种通信系统的基站, 可以用于 GSM/UMTS或 者 LTE系统。该基站为可以执行方法实施例中各方法的通信基站,用于利用方 法实施例中的方法来进行功率放大器的控制, 包括上述装置实施例中的基站 功放的功率调度装置。
本发明实施例中的基站获得功放特性信息, 并将业务分为实时业务和非 实时业务, 在调度时会根据功放特性进行分析根据实时业务的情况适当的调 度非实时业务的分布情况, 可以使得绝大部分业务将在功放工作在效率较高 的区域下, 提高了功放的利用率。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述 的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介

Claims

权利 要求 书
1、 一种信号发射功率调度的方法, 其特征在于, 包括:
获取功率放大器的功放特性信息及业务需求信息, 其中所述业务需求信息 包括实时业务的需求信息和非实时业务的需求信息;
根据所述业务需求信息及所述功放特性信息确定所述功率放大器的调节参 数和调度参数;
所述功率放大器根据所述调节参数进行发射功率调节获得放大后的发射功 率, 并且所述放大后的发射功率满足所述实时业务量的要求, 该功率放大器根 据所述调度参数调度所述非实时业务中的业务, 将所述非实时业务的输出功率 需求分配到不同时间段。
2、 如权利要求 1所述的方法, 其特征在于, 所述功放特性信息表示工作状 态下所述功率放大器的工作效率, 获取所述功放特性信息包括: 根据环境参数 确定功率放大器的输入功率和输出功率的对应关系获得所述功放特性信息, 其 中所述环境参数包括: 环境温度或者环境湿度。
3、 如权利要求 1所述的方法, 其特征在于, 所述功放特性信息表示工作状 态下所述功率放大器的工作效率, 获取所述功放特性信息包括: 根据业务参数 确定功率放大器的输入功率和输出功率的对应关系获得所述功放特性信息, 其 中所述业务参数包括: 功放状态或者发射带宽。
4、 如权利要求 1或 2或 3所述的方法, 其特征在于, 在确定功率放大器进行 功率放大的调节参数和调度参数前还包括:
根据所述功放特性信息确定所述功率放大器的低效率临界值;
确定所述根据所述业务需求信息及所述功放特性信息确定所述功率放大器 的调度参数包括: 确定所述非实时业务中被调度的非实时业务, 并且所述实时 业务与所述调度的非实时业务输出功率需求值之和不小于所述功率放大器的低 效率临界值。
5、 如权利要求 1或 2或 3所述的方法, 其特征在于, 在确定功率放大器进行 功率放大的调节参数和调度参数前还包括:
根据所述功放特性信息确定高效率临界值;
确定所述根据所述业务需求信息及所述功放特性信息确定所述功率放大器 的调度参数包括: 确定所述非实时业务中被调度的非实时业务, 并且所述实时 业务与所述调度的非实时业务输出功率需求值之和不大于所述高效率临界值。
6、 如权利要求 1-3任一权利要求中所述的方法, 其特征在于, 确定所述根据 所述业务需求信息及所述功放特性信息确定所述功率放大器的调度参数包括, 确定所述调度参数使得所述功率放大器输入功率的总和最小化或者所述功率放 大器的功率消耗最小化或者峰均比最小化;
根据所述业务需求信息及所述功放特性信息确定所述功率放大器的调节参 数使得所述功率放大器根据放大后的发射功率至少满足所述实时业务量的要 求。
7、 如权利要求 6所述的方法, 其特征在于, 所述根据所述业务需求信息及 所述功放特性信息确定所述功率放大器的调节参数和调度参数包括, 对所述非 实业务随机产生分布, 计算每次所述非实时业务随机分布时功率放大器输入功 率的总和或者所述功率放大器的功率消耗或者峰均比, 重复多次随机分布所述 非实时业务, 分别选择功率放大器输入功率的总和最小或者所述功率放大器的 功率消耗最小或者峰均比最小的非实时业务的分配情况确定所述调节参数和调 度参数。
8、 如权利要求 1-5任一权利要求中所述的方法, 其特征在于, 根据所述业务 需求信息及所述功放特性信息确定所述功率放大器的调节参数和调度参数使得 所述功率放大器工作在效率最高的放大区间。
9、 一种通信基站, 其特征在于, 包括功率放大器及功率调度装置, 所述功率调度装置用于获取所述功率放大器的功放特性信息及业务需求信 息, 并根据所述业务需求信息及所述功放特性信息确定所述功率放大器的调节 参数和调度参数, 其中所述业务需求信息包括实时业务的需求信息和非实时业 务的需求信息;
所述功率放大器根据所述调节参数进行发射功率调节获得放大后的发射功 率, 并且所述放大后的发射功率满足所述实时业务量的要求, 该功率放大器根 据所述调度参数调度所述非实时业务中的业务, 将所述非实时业务的输出功率 需求分配到不同时间段。
10、 如权利要求 9所述的通信基站, 其特征在于, 所述功率调度装置包括: 信息获取模块, 用于获取功放特性信息及业务需求信息, 其中所述业务需 求信息包括实时业务的需求信息和非实时业务的需求信息;
参数调节单元, 用于根据所述业务需求信息及所述功放特性信息确定所述 功率放大器的调节参数和调度参数。
11、 如权利要求 10所述的通信基站, 其特征在于, 所述信息获取模块获得 的功放特性信息表示工作状态下所述功率放大器的工作效率, 信息获取模块用 于根据环境参数确定功率放大器的输入功率和输出功率的对应关系获得所述功 放特性信息, 其中所述环境参数包括: 环境温度或者环境湿度。
12、 如权利要求 10所述的通信基站, 其特征在于, 所述信息获取模块获得 的功放特性信息表示工作状态下所述功率放大器的工作效率, 信息获取模块用 于根据业务参数确定功率放大器的输入功率和输出功率的对应关系获得所述功 放特性信息, 其中所述环境参数包括功放状态或者发射带宽。
13、 如权利要求 10所述的通信基站, 其特征在于, 所述参数调节单元还用 于根据所述功放特性信息确定低效率临界值; 并进一步用于确定所述非实时业 务中被调度的非实时业务, 并且所述实时业务与所述调度的非实时业务输出功 率需求值之和不小于所述功率放大器的低效率临界值。
14、 如权利要求 10所述的通信基站, 其特征在于, 所述参数调节单元还用 于根据所述功放特性信息确定高效率临界值; 并进一步用于确定所述非实时业 务中被调度的非实时业务, 并且所述实时业务与所述调度的非实时业务输出功 率需求值之和不大于所述高效率临界值。
15、 如权利要求 10-13任一权利要求所述的通信基站, 所述参数调节单元确 定所述根据所述业务需求信息及所述功放特性信息确定所述功率放大器的调度 参数包括, 确定所述调度参数使得所述功率放大器输入功率的总和最小化或者 所述功率放大器的功率消耗最小化或者峰均比最小化; 根据所述业务需求信息 及所述功放特性信息确定所述功率放大器的调节参数使得所述功率放大器根据 放大后的发射功率至少满足所述实时业务量的要求。
16、 如权利要求 9-13任一权利要求所述的装置, 其特征在于, 所述参数调 节单元根据所述业务需求信息及所述功放特性信息确定所述功率放大器的调节 参数和调度参数包括: 对所述非实业务随机产生分布, 计算每次所述非实时业 务随机分布时功率放大器输入功率的总和或者所述功率放大器的功率消耗或者 峰均比, 重复多次随机分布所述非实时业务, 分别选择功率放大器输入功率的 总和最小或者所述功率放大器的功率消耗最小或者峰均比最小的非实时业务的 分配情况确定所述调节参数和调度参数。
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