CN114189260A - Power amplifier for pRRU and pRRU power amplification all-in-one machine - Google Patents
Power amplifier for pRRU and pRRU power amplification all-in-one machine Download PDFInfo
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- CN114189260A CN114189260A CN202111250710.6A CN202111250710A CN114189260A CN 114189260 A CN114189260 A CN 114189260A CN 202111250710 A CN202111250710 A CN 202111250710A CN 114189260 A CN114189260 A CN 114189260A
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- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 30
- 238000004891 communication Methods 0.000 claims description 26
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/213—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only in integrated circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
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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 a power amplifier for a pRRU and a pRRU power amplification all-in-one machine, wherein the power amplifier for the pRRU comprises a first MIMO channel and a second MIMO channel; the first MIMO channel comprises two first combiners and a first uplink and a first downlink which are connected between the two first combiners in parallel; the second MIMO channel includes two second combiners and a second uplink, a second downlink, a third uplink, and a third downlink connected in parallel between the two second combiners; each path of the first MIMO channel and each path of the second MIMO channel also comprise two time slot control switches for controlling the switching of uplink and downlink signals. The power amplifier supports the MIMO technology, can amplify and upgrade the power of the traditional pRRU, enhances the product coverage capability, and can be widely applied to indoor and outdoor coverage of large and medium-sized scenes.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a power amplifier for a pRRU and a pRRU power amplification integrated machine.
Background
The traditional small remote radio unit (pRRU) micro base station product is positioned in indoor signal fine coverage, has large capacity and small power, and is limited in coverage.
Disclosure of Invention
In order to solve the defects in the prior art, the main object of the present invention is to provide a power amplifier for a pRRU and a pRRU power amplification all-in-one machine, wherein the power amplifier supports the MIMO technology, can perform power amplification upgrade on the conventional pRRU, enhances the product coverage capability, can be widely applied to indoor and outdoor coverage in large and medium scenes, can solve signal coverage in large buildings (groups), villages in cities, residential districts and office buildings, and can also be used for coverage in villages, towns, tourist areas, highways, etc.
To achieve the above object, according to a first aspect of the present invention, there is provided a power amplifier for pRRU.
The power amplifier for the pRRU comprises a plurality of first MIMO channels and a plurality of second MIMO channels; wherein:
each path of the first MIMO channel comprises two first combiners and a first uplink and a first downlink which are connected between the two first combiners in parallel;
each path of the second MIMO channel comprises two second combiners and a second uplink, a second downlink, a third uplink and a third downlink which are connected between the two second combiners in parallel;
each of the first MIMO channel and the second MIMO channel further includes two timeslot control switches, and uplink and downlink signals of the first uplink and the first downlink and uplink and downlink signals of the second uplink and the second downlink are respectively controlled by the two timeslot control switches.
Further, the first uplink includes a first uplink low noise amplifier for transmitting 5G signals, and an input end and an output end of the first uplink low noise amplifier are respectively connected to the two first combiners through the two timeslot control switches.
Further, the first downlink comprises a first downlink power high linearity amplifier for transmitting 5G signals, and the input and output of the first downlink power high linearity amplifier are respectively connected with the two first combiners through the two timeslot control switches.
Further, the second uplink includes a second uplink low noise amplifier for transmitting 5G signals, and an input end and an output end of the second uplink low noise amplifier are respectively connected to the two second combiners through the two timeslot control switches.
Further, the second downlink comprises a second downlink high-linearity power amplifier for transmitting 5G signals, and an input end and an output end of the second downlink high-linearity power amplifier are respectively connected with the two second combiners through the two timeslot control switches.
Further, the third uplink includes a third uplink low noise amplifier for transmitting 4G signals, and an input end and an output end of the third uplink low noise amplifier are respectively connected to the two second combiners.
Further, the third downlink comprises a third downlink high-linearity power amplifier for transmitting 4G signals, and an input end and an output end of the third downlink high-linearity power amplifier are respectively connected to the two second combiners.
Further, the first combiner and the second combiner each include a filter.
The system further comprises a plurality of first communication access ports, a plurality of second communication access ports and a plurality of second communication access ports;
two ends of each path of the first MIMO channel are respectively connected with the first communication access port and the first communication access port;
and two ends of each path of the second MIMO channel are respectively connected with the second communication access port and the second communication access port.
In order to achieve the above object, according to a second aspect of the present invention, there is provided a pRRU power amplification all-in-one machine.
The pRRU power amplification all-in-one machine comprises a small radio remote unit pRRU and the power amplifier for the pRRU, wherein:
each of the first MIMO channel and each of the second MIMO channel are connected to the pRRU via a coaxial cable. The pRRU and the power amplifier are placed in a sealed waterproof box with a radiator to support indoor and outdoor scene installation application.
With the acceleration of 5G business, the problems of 4G business investment reduction and 5G investment insufficiency are solved in the three operator group levels, and in the city level, 4G still has a plurality of blind areas to be compensated or needs to be subjected to 4G capacity enhancement. Therefore, the contradiction between the idle pRRU-type digital equipment and the situation that the coverage blind compensation of the 4G/5G network and the capacity compensation requirement cannot be met occurs. The method helps operators to realize the reuse of pRRU digital assets.
The invention has the following effective effects:
1. the power amplifier applied to the pRRU can be used for innovatively upgrading pRRU products, and the power amplification of the pRRU products is upgraded to a single-channel supporting 10W/20W, so that the coverage capability of the pRRU products is aligned with that of common RRU products, and the pRRU products can be used in more indoor and outdoor scenes. The pRRU type product transformation and upgrading can be used for solving the indoor and outdoor coverage problem of large and medium-sized scenes and improving the network coverage and depth, and becomes an important means for improving the network quality and the service quality.
2. The high-power integrated pRRU system after power amplification can play an important role in the fine coverage of 4G and 5G network optimization and market segmentation of operators.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a block diagram of a power amplifier for pRRU provided in an embodiment of the present invention;
fig. 2 is an application networking diagram of a pRRU power amplification all-in-one machine provided in an embodiment of the present invention.
In the figure:
1. a first combiner; 2. a second combiner; 3. a time slot control switch; 4. a first uplink low noise amplifier; 5. a first down high linear power amplifier; 6. a second uplink low noise amplifier; 7. a second downlink high-linearity power amplifier; 8. a third uplink low noise amplifier; 9. a third downlink high-linearity power amplifier; 11. a convergence unit EU; 12. a pRRU power amplification all-in-one machine; 13. an antenna.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
According to a specific embodiment of the present invention, a power amplifier for a pRRU is provided.
According to the power amplifier for the pRRU, a high-linearity power amplifier (including filtering) is adopted for amplifying power in a downlink, low-noise amplification is adopted for line gain compensation in an uplink, and meanwhile, an uplink gain compensation value is adjusted according to an uplink user load (subcarrier power) to control uplink background noise. Meanwhile, the power balance of each channel is controlled to ensure 4G and 5G MIMO, 4G and 5G power amplification are relatively independent, and 4G power amplification, 5G power amplification and 4G +5G power amplification can be carried out according to actual needs.
As shown in fig. 1, the power amplifier for pRRU in the present invention includes several first MIMO channels, where each first MIMO channel includes two first combiners 1, and a first uplink and a first downlink connected in parallel between the two first combiners 1; each path of the first MIMO channel also comprises two time slot control switches 3, and the two time slot control switches 3 are used for respectively controlling the uplink and downlink signal switching of the first uplink and the first downlink; the power amplifier for the pRRU further includes a plurality of second MIMO channels, wherein each second MIMO channel includes two second combiners 2, and a second uplink, a second downlink, a third uplink, and a third downlink connected in parallel between the two second combiners 2; each path of second MIMO channel further includes two timeslot control switches 3, and the two timeslot control switches 3 respectively control uplink and downlink signal switching of the second uplink and the second downlink.
In the above embodiment, the power amplifier applied to the pRRU can perform innovative upgrade and modification on pRRU products by setting a plurality of first MIMO channels and a plurality of second MIMO channels, and upgrade the power amplification of the pRRU products to a single channel supporting 10W/20W, so that the coverage capability of the pRRU products is aligned with that of a common RRU product, and the pRRU products can be used in more indoor and outdoor scenes. The pRRU type product transformation and upgrading can be used for solving the indoor and outdoor coverage problem of large and medium-sized scenes and improving the network coverage and depth, and becomes an important means for improving the network quality and the service quality.
As shown in fig. 1, the first uplink includes a first uplink low noise amplifier 4 for transmitting 5G signals, an input end and an output end of the first uplink low noise amplifier 4 are respectively connected to two first combiners 1, and uplink and downlink switching of the 5G signals is controlled by a timeslot control switch 3.
The first downlink comprises a first downlink high linear power amplifier 5 for transmitting 5G signals, wherein the input end and the output end of the first downlink high linear power amplifier 5 are respectively connected with the two first combiners 1, and the uplink and downlink switching of the 5G signals is controlled by a time slot control switch 3.
In the embodiment of the present invention, the first uplink and the first downlink are used for transmitting the 5G signal, and the two timeslot control switches 3 are used to control the uplink and downlink switching of the 5G signal, so that the power amplification of the 5G signal can be performed according to actual needs.
As shown in fig. 1, the second uplink includes a second uplink low noise amplifier 6 for transmitting the 5G signal, and the input and output terminals of the second uplink low noise amplifier 6 are respectively connected to the two second combiners 2, and the uplink and downlink switching of the 5G signal is controlled by the timeslot control switch 3.
The second downlink comprises a second downlink high-linearity power amplifier 7 used for transmitting the 5G signal, the input end and the output end of the second downlink high-linearity power amplifier 7 are respectively connected with the two second combiners 2, and the uplink and downlink switching of the 5G signal is controlled through the time slot control switch 3.
As shown in fig. 1, the third uplink includes a third uplink low noise amplifier 8 for transmitting 4G signals, and the input and output terminals of the third uplink low noise amplifier 8 are respectively connected to the two second combiners 2.
The third downlink comprises a third downlink high-linearity power amplifier 9 for transmitting 4G signals, and the input end and the output end of the third downlink high-linearity power amplifier 9 are respectively connected with the two second combiners 2.
In the embodiment of the present invention, the second uplink and the second downlink are also used for transmitting the 5G signal, and the two timeslot control switches 3 are used to control the uplink and downlink switching of the 5G signal, so that the power amplification of the 5G signal can be performed according to actual needs. The third uplink and the third downlink are used for transmission of the 4G signal, and since the second uplink, the second downlink, the third uplink and the third downlink are connected in parallel, it can be used only for power amplification of the 4G signal when the slot control switch 3 is turned off, and thus power amplification of the 4G signal and power amplification of the 4G +5G signal can be performed as needed.
It should be noted that, under the same power, the frequencies of the first downlink high-linearity power amplifier 5 and the second downlink high-linearity power amplifier 7 are higher than that of the third downlink high-linearity power amplifier 9, and the related technical difficulties are multiplied; the modulation modes of the first downlink high-linearity power amplifier 5 and the second downlink high-linearity power amplifier 7 are different from the modulation mode of the third downlink high-linearity power amplifier 9, the third downlink high-linearity power amplifier 9 is 64QAM (EVM <6), and the first downlink high-linearity power amplifier 5 and the second downlink high-linearity power amplifier 7 are 256QAM (EVM < 3.5); and the peak-to-average ratio of the first downlink high linear power amplifier 5 and the second downlink high linear power amplifier 7 is higher, and the average is 2-3 dB larger than that of the third downlink high linear power amplifier 9.
In the embodiment of the present invention, each of the first and second combiners 1 and 2 includes a filter (not shown).
In an embodiment of the present invention, the power amplifier for pRRU further includes a plurality of first communication access ports, a plurality of second communication access ports, and a plurality of second communication access ports; two ends of each path of first MIMO channel are respectively connected with a first communication access port and a first communication access port; and two ends of each second MIMO channel are respectively connected with a second communication access port and a second communication access port. The first communication access port and the second communication access port are respectively connected with the pRRU; the first communication port and the second communication port may be respectively connected to an antenna.
According to the specific implementation mode of the invention, the pRRU power amplification all-in-one machine is further provided.
As shown in fig. 1, the pRRU power amplification all-in-one machine includes a small remote radio unit pRRU and the above power amplifier for the pRRU, wherein: each first MIMO channel and each second MIMO channel are respectively connected by a coaxial cable connection pRRU to power amplify the conventional pRRU. The pRRU and the power amplifier are placed in a sealed waterproof box with a radiator to support indoor and outdoor scene installation application.
In the invention, the pRRU products are subjected to power amplification upgrading to enhance the product coverage capability, and the upgraded products can be widely applied to indoor and outdoor coverage of large and medium scenes.
Fig. 2 shows an application networking diagram of the pRRU power amplification all-in-one machine, wherein the input end of the pRRU power amplification all-in-one machine 12 is connected with the convergence unit EU11 through a CAT6A network wire or an optical fiber, and the output end of the pRRU power amplification all-in-one machine 12 is connected with the antenna 13 through a cable.
It is to be noted that the term "comprises" and any variations thereof in the description and claims of the present invention is intended to cover non-exclusive inclusions, such that the inclusion of a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not explicitly listed or inherent to such elements.
In the present invention, the terms "upper", "lower", "bottom", "top", "left", "right", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the description of "first," "second," etc. referred to in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A power amplifier for pRRU, comprising a plurality of first MIMO channels and a plurality of second MIMO channels; wherein:
each path of the first MIMO channel comprises two first combiners and a first uplink and a first downlink which are connected between the two first combiners in parallel;
each path of the second MIMO channel comprises two second combiners and a second uplink, a second downlink, a third uplink and a third downlink which are connected between the two second combiners in parallel;
each of the first MIMO channel and the second MIMO channel further includes two timeslot control switches, and uplink and downlink signals of the first uplink and the first downlink and uplink and downlink signals of the second uplink and the second downlink are respectively controlled by the two timeslot control switches.
2. The power amplifier for a pRRU of claim 1, wherein the first uplink includes a first uplink low noise amplifier for transmitting 5G signals, and wherein an input and an output of the first uplink low noise amplifier are connected to the two first combiners through the two slot control switches, respectively.
3. The power amplifier for pRRU of claim 1 or 2, wherein the first downlink comprises a first downlink high-linearity power amplifier for transmitting 5G signals, and wherein an input and an output of the first downlink high-linearity power amplifier are respectively connected to the two first combiners through the two slot control switches.
4. The power amplifier for pRRU of claim 1, wherein the second uplink includes a second uplink low noise amplifier for transmitting 5G signals, and wherein an input and an output of the second uplink low noise amplifier are connected to the two second combiners through the two timeslot control switches, respectively.
5. The power amplifier for the pRRU of claim 1 or 4, wherein the second downlink comprises a second downlink high linearity power amplifier for transmitting 5G signals, an input and an output of the second downlink high linearity power amplifier connecting the two second combiners through the two slot control switches, respectively.
6. The power amplifier for the pRRU of claim 1 or 4, wherein the third uplink comprises a third uplink low noise amplifier for transmitting 4G signals, and wherein inputs and outputs of the third uplink low noise amplifier are connected to the two second combiners, respectively.
7. The power amplifier for the pRRU of claim 1 or 4, wherein the third downlink comprises a third downlink high-linearity power amplifier for transmitting 4G signals, the input and output of the third downlink high-linearity power amplifier being connected to the two second combiners, respectively.
8. The power amplifier for a pRRU of claim 1, wherein the first and second combiners each include a filter.
9. The power amplifier for a pRRU of claim 1, further comprising a number of first communication access ports, a number of second communication access ports, and a number of second communication access ports;
two ends of each path of the first MIMO channel are respectively connected with the first communication access port and the first communication access port;
and two ends of each path of the second MIMO channel are respectively connected with the second communication access port and the second communication access port.
10. A pRRU power amplification all-in-one machine, comprising a pRRU and the power amplifier for pRRU of any one of claims 1 to 9, wherein:
each of the first MIMO channel and the second MIMO channel is connected to the pRRU via a coaxial cable.
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| CN202111250710.6A CN114189260B (en) | 2021-10-26 | 2021-10-26 | Power amplifier for pRRU and pRRU power amplification integrated machine |
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| CN202111250710.6A CN114189260B (en) | 2021-10-26 | 2021-10-26 | Power amplifier for pRRU and pRRU power amplification integrated machine |
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| CN114189260B CN114189260B (en) | 2023-08-08 |
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