CN117320136A - Energy-saving control method and system for radio frequency unit in wireless communication base station - Google Patents
Energy-saving control method and system for radio frequency unit in wireless communication base station Download PDFInfo
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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
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
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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
- H04W52/30—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
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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
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
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- 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
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Abstract
The invention provides an energy-saving control method and system for a radio frequency unit in a wireless communication base station. Based on the invention, under the average power consumption measurement model of the radio frequency unit defined by European telecommunication standardization institute, the average power consumption of the radio frequency unit is reduced by 10-20%. Meanwhile, the power consumption of the radio frequency unit is reduced, and the energy consumption and carbon emission of access network equipment are reduced.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to an energy-saving control method and system for a radio frequency unit in a wireless communication base station.
Background
The present invention relates to the significant problem of global concern with climate change, and various industries are striving to take practical action to reduce carbon emissions. The wireless communication industry is not exceptional, and sustainable and long-term schemes are being adopted to continuously reduce energy consumption, carbon emission and network operation cost of operators. Therefore, for each wireless communication system device manufacturer, it is required to apply the latest energy saving technology to the network device to reduce the energy consumption through continuous technical innovation.
The wireless communication network includes a core network, an access network, and a transport network, wherein the access network is the largest energy consuming portion, accounting for approximately 70% of the power consumption of the entire wireless communication network. In an access network, base station equipment is a main energy consumption unit, and accounts for about 50% of the energy consumption of the access network. The base station device comprises 2 main parts, namely a baseband unit and a radio frequency unit. The power consumption of the rf unit is a major part, for example, a wireless network of a certain operator in korea, the power consumption of the rf unit is 88% of the entire base station apparatus in a 5G network, and the power consumption of the rf unit is 82% of the entire base station apparatus in a 4G network.
In 5G networks, the channel bandwidth is 5-10 times that of 4G, and therefore the output power of the network devices is required to be increased continuously to ensure network coverage of the devices. Meanwhile, the complexity of the radio frequency unit is also increasing, and the complexity is developed from single frequency 2 channels and single frequency 4 channels to 32 channels and 64 channels and multi-frequency 2 channels and 4 channels in the early stage, so that the power consumption of the device is also increasing. How to reduce the power consumption of the device is one of the more important issues of the rf unit.
In a practical business network, the traffic load reaches the maximum level only in certain specific areas and at specific times, so that the power consumption statistics under the condition of an industry standard traffic model are of more practical significance. In order to measure the energy efficiency index of the radio access network device more accurately, the european telecommunication standardization institute defines a measurement method for evaluating the power consumption and the energy consumption of the base station, i.e. the average power consumption of the base station is the average power consumption at the time of three different loads of low, medium and busy. The low load is 10% of full load, the medium load is 30% of full load, and the busy hour is 50% of full load. The statistical average power consumption is in 24 hours a day, with a low load of 6 hours, a medium load of 10 hours, and a busy hour of 8 hours.
Since the radio frequency unit is an important contributing device to power consumption, how to reduce the power consumption of the radio frequency unit is an important research direction in industry. In high-power (single-path output power > 20W) devices, the power amplifier is a main energy consumption module in the radio frequency unit device, so in high-power devices, how to make the power amplifier operate in a high-efficiency state as much as possible is one of the important directions of reducing power consumption. Based on the device average power consumption statistical model described above, when the device is operating in busy, medium load and idle states, the output power of each channel of the radio frequency unit is 1/2,1/3 and 1/10 of that of the full load respectively. According to the efficiency curve of the power amplifier itself, as shown in fig. 1 and 2, when the output power decreases, the efficiency of the power amplifier is in a reduced state. Therefore, in busy, medium load and idle states, the power amplifier in the radio frequency unit works in a lower efficiency state, thereby causing higher power consumption of the radio frequency unit. Thus, increasing the efficiency of the power amplifier during idle, medium load and busy hours is one of the important means to reduce the power consumption of the radio frequency unit under the average power consumption model defined by the european telecommunication standardization institute.
Disclosure of Invention
Aiming at the problems existing in the prior art, the energy-saving control method and the energy-saving control system for the radio frequency unit in the wireless communication base station are provided, and the average power of the current signal in the radio frequency unit is detected, so that the opening and closing of a channel are controlled, the transmitting power is increased or reduced, the power consumption of the radio frequency unit in busy hours, medium loads and idle hours is reduced, namely the average power consumption of the radio frequency unit in a service model defined by European telecommunication standardization institute is reduced.
The first aspect of the present invention proposes a method for controlling energy saving of a radio frequency unit in a wireless communication base station, which periodically detects an average power of a current signal sent to the radio frequency unit by a baseband, and controls to open or close a part of channels of the radio frequency unit and reduce or increase a transmitting power of the channels according to a power relationship between the average power of the current signal and a full signal of the radio frequency unit.
Further, the radio frequency unit energy-saving control method in the wireless communication base station specifically comprises the following steps:
step 1, periodically detecting the average power of the current signal transmitted to the radio frequency unit by the baseband in the wireless communication base station；
Step 2, calculating the average power of the current signalSignal average power corresponding to full load signal of radio frequency unit +.>Difference of->；
Step 3, presetting a two-stage threshold, wherein the first-stage threshold is smaller than the second-stage threshold;
when (when)When the first level is threshold, controlling to open all channels, if a newly opened channel exists, correspondingly reducing the transmitting power of the working channel, and entering the step 1;
when the first level is thresholdAnd (2) when the second-stage threshold is met, controlling to close a channel half of the total channels, correspondingly increasing or reducing the transmitting power of the remaining continuous working channels, and entering the step (1);
when (when)When the second-stage threshold is met, controlling to close three-fourths channels of the total channel number, correspondingly increasing or reducing the transmitting power of the rest working public channels, and entering the step 1;
wherein when the number of the closed channels is not one half or three quarters of the total number of channels, no adjustment is made to the transmit power of the remaining operating channels.
Further, in the step 3, whenWhen the first-stage threshold is met, if one half of the total channels are closed, when all closed channels are opened, the transmitting power of the channels which are working before all channels are opened is reduced by 3dB; if three-fourths of the total channels are closed, then all closedWhen the channels are opened, the power of the channels which are working before all the channels are opened is reduced by 6dB; if the number of the closed channels is not one half or three quarters of the total number of the channels, only all the closed channels are opened, and the transmitting power of the channels is not regulated.
Further, in the step 3, when the first level thresholdThe specific control method in the second-stage threshold is as follows:
step A1, detecting whether a channel is closed, if not, closing a channel of which the number is half of the total channels, increasing the transmitting power of the remaining continuous working channels, and entering the step 1; if yes, enter step A2;
step A2, judging whether the number of closed channels is one half of the total number of channels, if so, entering the step 1, otherwise, entering the step A3;
step A3, if the number of the closed channels is more than one half of the total number of channels and is three-fourths of the total number of channels, reducing the transmitting power of the channels in operation, reducing the number of the closed channels to one half of the total number of channels, and entering step 1; if the number of the closed channels is greater than one half of the total number of channels and is not three-fourths of the total number of channels, reducing the number of the closed channels to one half of the total number of channels, increasing the transmitting power of the rest continuous working channels, and entering the step 1; if the number of closed channels is less than half of the total number of channels, the number of closed channels is increased to half of the total number of channels, and the transmitting power of the remaining continuous working channels is increased, and the step 1 is entered.
Further, in the step A1, the transmit power of each channel is increased by 3dB.
Further, in the step A3, when the transmission power is reduced, the transmission power of each channel is reduced by 3dB; when the transmit power is increased, the transmit power per channel is increased by 3dB.
Further, in the step 3, whenThe specific control method in the second-stage threshold is as follows:
step B1, detecting whether channels are closed, if not, closing three-fourths channels of the total channels, increasing the transmitting power of the remaining continuous working channels, and entering the step 1; if yes, enter step B2;
step B2, judging whether the number of the closed channels is three fourths of the total number of the channels, if so, entering the step 1, otherwise, entering the step 1; otherwise, entering a step B3;
step B3, if the number of the closed channels is one half of the total number of channels, the number of the closed channels is increased to three fourths of the total number of channels, the transmitting power of the channels still working is increased, and the step 1 is entered, otherwise, the step B4 is entered;
step B4, if the number of the closed channels is greater than three fourths of the total number of channels, reducing the number of the closed channels to three fourths of the total number of channels, increasing the transmitting power of the channels still working, and entering step 1; if the number of closed channels is less than three-fourths of the total number of channels and is not one-half of the total number of channels, the number of closed channels is increased to three-fourths of the total number of channels, and the transmitting power of the working channels is increased, and the step 1 is performed.
Further, in the step B1, the transmit power of each channel is increased by 6dB.
Further, in the step B3, when the transmit power is increased, the transmit power of each channel is increased by 3dB.
Further, in the step B4, when the transmission power is increased, the transmission power of each channel is increased by 6dB.
The second aspect of the present invention provides an energy-saving control system for a radio frequency unit in a wireless communication base station, including:
the digital domain switches are correspondingly arranged on each channel of the radio frequency unit; the number of the digital domain switches is the same as that of the channels of the radio frequency unit;
the power detection module acquires signals received by the radio frequency unit and outputs control signals to the digital domain switch and the power amplifier on each channel of the radio frequency unit according to the energy-saving control method of the radio frequency unit in the wireless communication base station; the control signal is used for controlling the on or off of the digital domain switch and controlling the power amplifier to increase or decrease the transmitting power.
Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: based on the invention, under the average power consumption measurement model of the radio frequency unit defined by European telecommunication standardization institute, the average power consumption of the radio frequency unit is reduced by 10-20%. Meanwhile, the power consumption of the radio frequency unit is reduced, and the energy consumption and carbon emission of access network equipment are reduced.
Drawings
Fig. 1 is a graph of efficiency of a final stage power amplifier in the prior art.
Fig. 2 is a graph of efficiency of a driver stage power amplifier according to the prior art.
Fig. 3 is a schematic diagram of an energy-saving control method of a radio frequency unit in a wireless communication base station according to the present invention.
Fig. 4 is a comparison diagram of the operational states of the final stage power amplifier when half of the channels are closed in an embodiment of the present invention.
FIG. 5 is a comparison diagram of the driving power amplifier operating state when half channels are closed in an embodiment of the present invention.
Fig. 6 is a comparison of the operational states of the final power amplifier when three-quarters of the channels are closed in an embodiment of the present invention.
FIG. 7 is a comparison of the driving power amplifier operating states when three-quarters of the channels are closed in an embodiment of the present invention.
Fig. 8 is a schematic diagram of an energy-saving control system of a radio frequency unit in a wireless communication base station according to an embodiment of the present invention.
Fig. 9 is a schematic diagram of an energy saving control flow in an embodiment of the invention.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar modules or modules having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the present application include all alternatives, modifications, and equivalents as may be included within the spirit and scope of the appended claims.
Example 1
In order to reduce the power consumption of the radio frequency unit in busy hours, medium loads and idle hours, the embodiment provides an energy-saving control method for the radio frequency unit in a wireless communication base station, which periodically detects the average power of a current signal sent to the radio frequency unit by a base band, and controls to open or close part of channels of the radio frequency unit and reduce or increase the transmitting power of the channels according to the power relation between the average power of the current signal and the full signal of the radio frequency unit. The method can make the power amplifier of the channel in the radio frequency unit work in a higher efficiency state, thereby reducing the power consumption of the radio frequency unit in busy hours, medium loads and idle hours, and reducing the average power consumption of the radio frequency unit in a service model defined by European telecommunication standardization institute. Meanwhile, by increasing the single-channel transmitting power of the radio frequency unit, the diversity gain lost by closing the channel is compensated to a certain extent, and the influence on network coverage is reduced as much as possible. The specific scheme is as follows:
referring to fig. 3, the method for controlling energy saving of a radio frequency unit in a wireless communication base station specifically includes the following steps:
step 1, periodically detecting the average power of the current signal transmitted to the radio frequency unit by the baseband in the wireless communication base stationThe calculation formula is as follows:
wherein,representing the average power of the signal sent by the baseband to the radio frequency unit, etc>Indicating the +.o. of the base station to send to the radio frequency unit>Personal signal->Representation of total +.>The signals of the individual points are subjected to an average power calculation.
The average power detection of the input signal is periodically carried out in the radio frequency unit, and the average power detection is used as a judging basis of whether the channel is closed or not on the basis of the average power detection.
Step 2, calculating the average power of the current signalSignal average power corresponding to full load signal of radio frequency unit +.>Difference of->The method comprises the steps of carrying out a first treatment on the surface of the The computational expression is:
wherein,in dB.
Step 3, in this embodiment, two levels of thresholds are preset to be used for comparison with the difference, and it should be noted that the first level threshold is less than the second level threshold; and according to different average power threshold value settings, closing the corresponding channel number, and reducing the power consumption of the radio frequency unit. In one embodiment, the theoretical threshold is set to be-3 dB of rated power, and when the theoretical threshold is actually implemented, the theoretical threshold can be-3.5 dB of rated power, with a certain margin. Specific:
when (when)When the first level is threshold, all channels are controlled to be openedIf a newly opened channel exists, correspondingly reducing the transmitting power of the channel which is working, and entering the step 1; wherein when the number of the closed channels is not one half or three quarters of the total number of channels, no adjustment is made to the transmit power of the remaining operating channels.
When the first level is thresholdAnd (2) when the second-stage threshold is met, controlling to close a channel half of the total channels, correspondingly increasing or reducing the transmitting power of the remaining continuous working channels, and entering the step (1);
when (when)And (3) when the second stage is in the threshold, controlling to close the channels of three fourths of the total channels, correspondingly increasing or reducing the transmitting power of the rest working public channels, and entering the step (1).
Referring to fig. 9, three cases in step 3 are further described below.
For the followingFirst level threshold case:
and (3) detecting whether channels are closed, if so, adjusting the transmitting power of the channels still working according to the number of closed channels, opening all closed channels, and then entering step (1) to continuously perform periodic average power detection. Wherein, if one half of the total channels are closed, the transmitting power of the channels which are working before all the channels are opened is reduced by 3dB when all the closed channels are opened; if three-fourths of the total channels are closed, the power of the channels in operation is reduced by 6dB before all the closed channels are opened; if there are channels that are closed and not one-half or three-fourths of the total number of channels, then all closed channels are opened.
If no channel is closed, the method directly enters step 1, and the periodic average power detection is continuously carried out.
For first stage gatesLimiting the limitSecond level threshold case:
it is also necessary to detect whether any channel is closed, if not, then, close one half of the total channels, and increase the output power of each channel by 3dB for the remaining channels that continue to operate, and then enter step 1 to continue to perform the periodic average power detection.
If the channels are closed, the relationship between the number of closed channels and the total number of channels needs to be judged.
If the number of the closed channels is half of the total number of the channels, directly entering the step 1, and continuously detecting the period average power.
If the number of closed channels is greater than one half of the total number of channels and is three-fourths of the total number of channels, the transmitting power of the channels in operation is reduced (in this embodiment, 3dB is reduced), the number of closed channels is reduced to one half of the total number of channels, and step 1 is performed continuously to detect the period average power. If the number of closed channels is greater than one half of the total number of channels and is not three-fourths of the total number of channels, the number of closed channels is reduced to one half of the total number of channels, and the transmitting power of the remaining continuous working channels is increased (in this embodiment, increased by 3 dB), and step 1 is entered to continuously perform periodic average power detection. It should be noted that in this state, the number of closed channels is reduced to half of the total number of channels, and then the transmit power of the channels is adjusted.
If the number of closed channels is less than one-half of the total number of channels, the number of closed channels is increased to one-half of the total number of channels, and the transmit power of the remaining channels that are to be operated is increased (in this embodiment, by 3 dB). For example, the number of closed channels is one-fourth of the total number of channels, at this time, one-fourth of the total number of channels is closed again, the output power of the remaining channels is increased by 3dB, and step 1 is performed again, and the cycle average power detection is continuously performed. It should be noted that in this state, the number of closed channels is increased to half of the total number of channels, and then the transmit power of the channels is adjusted.
In this embodiment, on one hand, the power amplifier is enabled to work in a higher efficiency state by improving the 3dB output power, and on the other hand, the 3dB diversity gain loss caused by the closing of the common channel is compensated, so as to reduce the influence on the network coverage. Fig. 4 and 5 are schematic diagrams showing comparison between the power amplification states of the final stage and the driving stage when the control method of the present invention is adopted and the conventional method, in fig. 4, point a represents the operating efficiency point of the final stage power amplifier when the control method of the present invention is adopted and full load is adopted, point A1 represents the operating efficiency point of the final stage power amplifier when the control method of the present invention is adopted and middle load is adopted, point A3 represents the operating efficiency point of the final stage power amplifier when the control method of the present invention is not adopted and point A4 represents the operating efficiency point of the final stage power amplifier when the control method of the present invention is not adopted and middle load is adopted. In fig. 5, point B represents the driving stage power amplifier operating efficiency point at full load, B1 represents the driving stage power amplifier operating efficiency point at busy load when the present invention is adopted, point B2 represents the driving stage power amplifier operating efficiency point at medium load when the present invention is adopted, point B3 represents the driving stage power amplifier operating efficiency point at busy load when the present invention is not adopted, and point B4 represents the driving stage power amplifier operating efficiency point at medium load when the present invention is not adopted.
Through verification, when a half of channels are closed, the method can effectively improve the working efficiency of the power amplifier.
For the followingSecond level threshold case:
it is also necessary to detect whether any channel is closed, if not, close three-fourths of the total channels, and increase the transmitting power of the remaining channels that continue to operate by 6dB, and then enter step 1 to continue to perform the period average power detection.
If the channels are closed, the relationship between the number of closed channels and the total number of channels needs to be judged.
If the number of closed channels is three-fourths of the total number of channels, directly enter step 1, and continuously perform periodic average power detection.
If the number of closed channels is one half of the total number of channels, the number of closed channels is increased to three quarters of the total number of channels, and the channel transmitting power still in operation is increased (in this embodiment, increased by 3 dB), and step 1 is entered to continue the period average power detection.
If the number of closed channels is greater than three-fourths of the total number of channels, the number of closed channels is reduced to three-fourths of the total number of channels, and the transmitting power of the channels still in continuous operation is increased (in this embodiment, increased by 6 dB), and then step 1 is carried out to continuously detect the period average power. It should be noted that in this state, the number of closed channels is reduced to three-fourths of the total number of channels, and then the transmit power of the channels is adjusted.
If the number of closed channels is less than three-fourths of the total number of channels and is not one-half of the total number of channels, the number of closed channels is increased to three-fourths of the total number of channels, the transmitting power of the channels which are left to work continuously is increased (in this embodiment, 6dB is increased), and then step 1 is carried out to continuously detect the period average power. It should be noted that in this state, the number of closed channels is increased to three-fourths of the total number of channels, and then the transmit power of the channels is adjusted.
In this embodiment, on one hand, the power amplifier is enabled to work in a higher efficiency state by increasing the output power by 6dB, and on the other hand, the loss of the diversity gain of 6dB due to the 3/4 channel being closed is compensated, so as to reduce the influence on the network coverage. Fig. 6 and 7 are schematic diagrams showing comparison between the power amplification states of the final stage and the driving stage when the three-quarter channels are closed by adopting the control method of the present invention and the conventional method, in fig. 6, point C represents the operating efficiency point of the final stage power amplifier when the load is full, point C1 represents the operating efficiency point of the idle final stage power amplifier when the present invention is adopted, and point C2 represents the operating efficiency point of the idle final stage power amplifier when the present invention is not adopted. In fig. 7, a point D represents the operating efficiency point of the driving stage power amplifier at full load, a point D1 represents the operating efficiency point of the idle driving stage power amplifier when the present invention is adopted, and a point D2 represents the operating efficiency point of the idle driving stage power amplifier when the present invention is not adopted.
Through verification, when three-quarter channels of the total channel number are closed, the method can effectively improve the working efficiency of the power amplifier.
It should be noted that in this embodiment, the number of channels calculated should be an integer, and may be rounded up or down in practical application. In some application scenarios, only 1/(2 n) channels remain to work, and then other numbers of closed channels cannot appear in the scenario, namely, a situation of closing a quarter of channels cannot appear, and in the scenario, only certain judgment of closing the number of channels is needed, such as closing the number of half channels, the number of three-quarters of channels, and the like.
The invention increases the transmitting power of the channel which continues to work while closing the channel, so that the power amplifier in the working channel works at a higher efficiency point. And the diversity gain loss caused by closing the channel is compensated by increasing the transmitting power of each channel: when a half of channels are closed, the power of the channels which continue to work is increased by 3dB; when the 3/4 channel is closed, the channel power for continued operation increases by 6dB.
Example 2
The present embodiment proposes an energy-saving control system for a radio frequency unit in a wireless communication base station, please refer to fig. 8, which is applied to the radio frequency unit, and the functions of each module are described one by one for the control system shown in fig. 8:
the forward interface is an interface function module of a radio frequency unit and a baseband unit in the base station. The radio frequency unit comprises a plurality of channels and fig. 8 shows a 4-channel scenario.
Each channel comprises a digital up-conversion module, a peak clipping module, a digital predistortion module, a DAC module, a BPF module, a power amplifier and a filter. Specific: and the digital up-conversion module is used for increasing the signal sampling rate and obtaining the expected performance by interpolating the received baseband signal. And the peak clipping module is used for reducing the peak-to-average ratio of the signal. The digital predistortion is used for improving the nonlinearity of the power amplifier, and the basic principle is that a predistortion signal is generated according to a feedback signal of a transmitting feedback channel and is superimposed on a forward input signal, so that the purpose of compensating the power amplifier distortion is achieved. And the DAC module is used for converting the digital signals into analog signals. And the power amplifier is responsible for amplifying the signal to a desired power level, and comprises a driving stage power amplifier and a final stage power amplifier. In practice, the radio frequency unit further includes other functional modules, which are all existing modules, and are not described herein.
In this embodiment, on the basis of the radio frequency unit, the radio frequency unit further includes:
the digital domain switches are correspondingly arranged on each channel of the radio frequency unit; the number of the digital domain switches is the same as that of the channels of the radio frequency unit;
the power detection module acquires signals received by the radio frequency unit and outputs control signals to the digital domain switch and the power amplifier on each channel of the radio frequency unit according to the energy-saving control method of the radio frequency unit in the wireless communication base station; the control signal is used for controlling the on or off of the digital domain switch and controlling the power amplifier to increase or decrease the transmitting power.
By adopting the method provided by the invention, under the radio frequency unit average power consumption measurement model defined by European telecommunication standardization institute, the average power consumption of the radio frequency unit is reduced by 10-20%, and meanwhile, the power consumption of the radio frequency unit is reduced, and the energy consumption and carbon emission of access network equipment are reduced.
It should be noted that, in the description of the embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in detail by those skilled in the art; the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (11)
1. The energy-saving control method for radio frequency unit in radio communication base station is characterized by that it periodically detects the current signal average power sent by base band into radio frequency unit, and according to the power relationship between current signal average power and radio frequency unit full-load signal, it can control to turn on or off radio frequency unit partial channel and reduce or increase the transmitting power of channel.
2. The method for controlling energy saving of a radio frequency unit in a wireless communication base station according to claim 1, comprising the specific steps of:
step 1, periodically detecting the average power of the current signal transmitted to the radio frequency unit by the baseband in the wireless communication base station；
Step 2, calculating the average power of the current signalSignal average power corresponding to full load signal of radio frequency unitDifference of->；
Step 3, presetting a two-stage threshold, wherein the first-stage threshold is smaller than the second-stage threshold;
when (when)When the first level is threshold, controlling to open all channels, if a newly opened channel exists, correspondingly reducing the transmitting power of the working channel, and entering the step 1;
when the first level is thresholdAnd (2) when the second-stage threshold is met, controlling to close a channel half of the total channels, correspondingly increasing or reducing the transmitting power of the remaining continuous working channels, and entering the step (1);
when (when)When the second-stage threshold is met, controlling to close three-fourths channels of the total channel number, correspondingly increasing or reducing the transmitting power of the rest working channels, and entering the step 1;
wherein when the number of the closed channels is not one half or three quarters of the total number of channels, no adjustment is made to the transmit power of the remaining operating channels.
3. The method for power saving control of a radio frequency unit in a wireless communication base station according to claim 2, wherein in said step 3, whenWhen the first-stage threshold is met, if one half of the total channels are closed, when all closed channels are opened, the transmitting power of the channels which are working before all channels are opened is reduced by 3dB; if three-fourths of the total channels are closed, when all closed channels are opened, the power of the channels which are working before all channels are opened is reduced by 6dB; if there are channels that are closed and not one-half or three-fourths of the total number of channels, then all closed channels are opened.
4. A method for power saving control of a radio frequency unit in a wireless communication base station according to claim 2 or 3, wherein in said step 3, when the first threshold is setThe specific control method in the second-stage threshold is as follows:
step A1, detecting whether a channel is closed, if not, closing a channel of which the number is half of the total channels, increasing the transmitting power of the remaining continuous working channels, and entering the step 1; if yes, enter step A2;
step A2, judging whether the number of closed channels is one half of the total number of channels, if so, entering the step 1, otherwise, entering the step A3;
step A3, if the number of the closed channels is more than one half of the total number of channels and is three-fourths of the total number of channels, reducing the transmitting power of the channels in operation, reducing the number of the closed channels to one half of the total number of channels, and entering step 1; if the number of the closed channels is greater than one half of the total number of channels and is not three-fourths of the total number of channels, reducing the number of the closed channels to one half of the total number of channels, increasing the transmitting power of the rest continuous working channels, and entering the step 1; if the number of closed channels is less than half of the total number of channels, the number of closed channels is increased to half of the total number of channels, and the transmitting power of the remaining continuous working channels is increased, and the step 1 is entered.
5. The method according to claim 4, wherein in the step A1, the transmit power of each channel is increased by 3dB.
6. The method for power saving control of a radio frequency unit in a wireless communication base station according to claim 4, wherein in the step A3, when the transmission power is reduced, the transmission power of each channel is reduced by 3dB; when the transmit power is increased, the transmit power per channel is increased by 3dB.
7. A method for power saving control of a radio frequency unit in a wireless communication base station according to claim 2 or 3, wherein in said step 3, whenThe specific control method in the second-stage threshold is as follows:
step B1, detecting whether channels are closed, if not, closing three-fourths channels of the total channels, increasing the transmitting power of the remaining continuous working channels, and entering the step 1; if yes, enter step B2;
step B2, judging whether the number of the closed channels is three fourths of the total number of the channels, if so, entering the step 1, otherwise, entering the step B3;
step B3, if the number of the closed channels is one half of the total number of channels, the number of the closed channels is increased to three fourths of the total number of channels, the transmitting power of the channels still working is increased, and the step 1 is entered, otherwise, the step B4 is entered;
step B4, if the number of the closed channels is greater than three fourths of the total number of channels, reducing the number of the closed channels to three fourths of the total number of channels, increasing the transmitting power of the channels still working, and entering step 1; if the number of closed channels is less than three-fourths of the total number of channels and is not one-half of the total number of channels, the number of closed channels is increased to three-fourths of the total number of channels, and the transmitting power of the working channels is increased, and the step 1 is performed.
8. The method for power saving control of a radio frequency unit in a wireless communication base station according to claim 7, wherein in the step B1, the transmission power of each channel is increased by 6dB.
9. The method according to claim 7, wherein in the step B3, when the transmission power is increased, the transmission power of each channel is increased by 3dB.
10. The method according to claim 7, wherein in the step B4, when the transmission power is increased, the transmission power of each channel is increased by 6dB.
11. A radio frequency unit energy saving control system in a wireless communication base station, comprising:
the digital domain switches are correspondingly arranged on each channel of the radio frequency unit; the number of the digital domain switches is the same as that of the channels of the radio frequency unit;
the power detection module is used for acquiring signals received by the radio frequency unit and outputting control signals to the digital domain switch and the power amplifier on each channel of the radio frequency unit according to the energy-saving control method of the radio frequency unit in the wireless communication base station according to any one of claims 1-10; the control signal is used for controlling the on or off of the digital domain switch and controlling the power amplifier to increase or decrease the transmitting power.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140128032A1 (en) * | 2011-06-20 | 2014-05-08 | Prasad Muthukumar | Smart Active Antenna Radiation Pattern Optimising System For Mobile Devices Achieved By Sensing Device Proximity Environment With Property, Position, Orientation, Signal Quality And Operating Modes |
| US20200396625A1 (en) * | 2019-06-14 | 2020-12-17 | Cypress Semiconductor Corporation | Method for iot device to stagger tx and save power |
| CN112564806A (en) * | 2020-12-18 | 2021-03-26 | 京信网络系统股份有限公司 | Multichannel radio frequency transmitting and receiving device and method |
| CN112752327A (en) * | 2019-10-29 | 2021-05-04 | 上海华为技术有限公司 | Power regulation method and access network equipment |
| CN113453323A (en) * | 2020-03-27 | 2021-09-28 | 大唐移动通信设备有限公司 | Power consumption control method and device, electronic equipment and storage medium |
| CN113840357A (en) * | 2020-06-24 | 2021-12-24 | 中兴通讯股份有限公司 | Method and device for switching off base station channel, electronic equipment and computer readable medium |
| CN116321374A (en) * | 2023-03-09 | 2023-06-23 | 中国联合网络通信集团有限公司 | Base station energy-saving turn-off method, equipment and storage medium |
| CN116321229A (en) * | 2023-03-13 | 2023-06-23 | 东南大学 | Combined uplink and downlink resource allocation method for energy-saving transmission of URLLC system |
-
2023
- 2023-11-24 CN CN202311578469.9A patent/CN117320136B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140128032A1 (en) * | 2011-06-20 | 2014-05-08 | Prasad Muthukumar | Smart Active Antenna Radiation Pattern Optimising System For Mobile Devices Achieved By Sensing Device Proximity Environment With Property, Position, Orientation, Signal Quality And Operating Modes |
| US20200396625A1 (en) * | 2019-06-14 | 2020-12-17 | Cypress Semiconductor Corporation | Method for iot device to stagger tx and save power |
| CN112752327A (en) * | 2019-10-29 | 2021-05-04 | 上海华为技术有限公司 | Power regulation method and access network equipment |
| CN113453323A (en) * | 2020-03-27 | 2021-09-28 | 大唐移动通信设备有限公司 | Power consumption control method and device, electronic equipment and storage medium |
| CN113840357A (en) * | 2020-06-24 | 2021-12-24 | 中兴通讯股份有限公司 | Method and device for switching off base station channel, electronic equipment and computer readable medium |
| WO2021259323A1 (en) * | 2020-06-24 | 2021-12-30 | 中兴通讯股份有限公司 | Method and apparatus for shutting off channel of base station, electronic device, and computer-readable medium |
| CN112564806A (en) * | 2020-12-18 | 2021-03-26 | 京信网络系统股份有限公司 | Multichannel radio frequency transmitting and receiving device and method |
| CN116321374A (en) * | 2023-03-09 | 2023-06-23 | 中国联合网络通信集团有限公司 | Base station energy-saving turn-off method, equipment and storage medium |
| CN116321229A (en) * | 2023-03-13 | 2023-06-23 | 东南大学 | Combined uplink and downlink resource allocation method for energy-saving transmission of URLLC system |
Non-Patent Citations (3)
| Title |
|---|
| JANG, SUNG-BONG;KIM, YOUNG-GAB: "Power saving and delay reduction for supporting WLAN-based fixed-mobile convergence service in smartphone.", vol. 56, no. 4, XP011341884, DOI: 10.1109/TCE.2010.5681165 * |
| 赵云波;袁征;朱创;: "无线网络化控制系统的功率感知事件触发策略及其闭环稳定性", 控制理论与应用, no. 04 * |
| 陈彬: "5G无线网络中继传输系统的能量分配技术" * |
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