CN217037180U - Output power control device of communication equipment and communication system - Google Patents
Output power control device of communication equipment and communication system Download PDFInfo
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- CN217037180U CN217037180U CN202220657865.5U CN202220657865U CN217037180U CN 217037180 U CN217037180 U CN 217037180U CN 202220657865 U CN202220657865 U CN 202220657865U CN 217037180 U CN217037180 U CN 217037180U
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Abstract
The utility model relates to an output power control device of communication equipment and a communication system, wherein the device comprises: a coupler connected to the communication device; the power compensation circuit comprises a plurality of power compensation circuits for performing power compensation on communication equipment, wherein the compensation power of each power compensation circuit is respectively matched with frequency intervals where different communication frequency bands of the communication equipment are located; the switch assembly is respectively connected with the coupling end of the coupler and each path of power compensation circuit; and the control component is respectively connected with the communication equipment and the switch component and is used for controlling the switch component to conduct the corresponding power compensation circuit according to the frequency interval of the current communication frequency band of the communication equipment. Therefore, the problem that in the related art, the accuracy of the output power of the communication equipment at medium and low frequencies is greatly reduced because the communication equipment is only provided with one group of power detection circuits is solved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an output power control apparatus of a communication device and a communication system.
Background
At present, when a power control circuit of a communication device is designed, a set of power detection circuits is designed in the power control circuit for power compensation in all frequency bands, that is, power is detected and power compensation is performed through the power detection circuits no matter in intermediate frequency or low frequency.
However, with the increase of the communication frequency bands of the communication device, all the communication frequency bands are compensated by a group of power detection circuits, which easily causes the communication device to be over-saturated at the intermediate frequency and under-saturated at the low frequency, thereby greatly reducing the accuracy of the output power of the communication device at the intermediate and low frequencies.
SUMMERY OF THE UTILITY MODEL
The utility model provides an output power control device of communication equipment and a communication system, which are used for solving the problems that in the related art, the communication equipment is only provided with one group of power detection circuits, the accuracy of the output power of the communication equipment at medium and low frequencies is greatly reduced, and the like.
An embodiment of a first aspect of the present invention provides an output power control apparatus for a communication device, including: a coupler connected to the communication device; the power compensation circuits are used for performing power compensation on the communication equipment, wherein the compensation power of each power compensation circuit is respectively matched with the frequency intervals of different communication frequency bands of the communication equipment; the switch assembly is respectively connected with the coupling end of the coupler and each path of power compensation circuit; and the control component is respectively connected with the communication equipment and the switch component and is used for controlling the switch component to conduct a corresponding power compensation circuit according to a frequency interval where the current communication frequency band of the communication equipment is located.
Further, the switch module includes a first connection end and a plurality of second connection ends, where the first connection end is connected to the coupling end of the coupler, each second connection end is connected to one end of each power compensation circuit, and the other end of each power compensation circuit is connected to the communication device.
Further, the switch assembly includes: a switch body; and the conducting piece is arranged on the switch body and used for conducting the corresponding power compensation circuit.
Further, each power compensation circuit comprises: one end of the power detection circuit is connected with the second connecting end of the switch assembly; and one end of the attenuator is connected with the other end of the power detection circuit, and the other end of the power detection circuit is connected with the communication equipment.
Further, the attenuation network of the attenuator may be a T-network or a pi-network.
Further, the input end of the coupler is connected with the output end of the communication equipment, and the output end of the coupler is connected with the antenna
Optionally, the multi-path power compensation circuit may include a first power compensation circuit and a second power compensation circuit
Optionally, the switch assembly may be a single pole double throw switch.
Alternatively, the communication device may be a transceiver
An embodiment of the second aspect of the present invention provides a communication system, including: a communication device and an antenna; the output power control device of the communication device according to the above embodiment.
Therefore, the utility model has at least the following beneficial effects:
the power compensation matched with the frequency intervals of different communication frequency bands is realized by arranging the power compensation circuits, so that the over-saturation or under-saturation phenomenon of the communication equipment in different communication frequency bands is avoided, and the accuracy of the output power of the communication equipment is effectively improved. Therefore, the technical problems that in the related art, the communication equipment is only provided with one group of power detection circuits, the accuracy of the output power of the communication equipment at the medium and low frequency is greatly reduced, and the like are solved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block diagram of an output power control apparatus of a communication device according to an embodiment of the present invention;
FIG. 2 is an exemplary diagram of an attenuation network of an attenuator provided in accordance with an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an output power control device of a communication apparatus according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating an operation principle of an output power control apparatus of a communication device according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
When designing an output power control circuit of a communication device, an HDET (power detection circuit) is usually designed to detect all frequency bands, and detect power through a set of HDET for power compensation no matter at an intermediate frequency or a low frequency, but the method of detecting power supplement through a set of HDET is only suitable for communication devices with fewer frequency bands. For some items supporting multiple bands, for example, in the 9205 platform item, communication bands (such as LTE bands) may include B1, B2, B3, B4, B5, B8, B12, B13, B14, B18, B19, B20, B25, B26, B27, B28, B66, B71, and B85, which support 19 bands in total, and there is a great risk that multiple bands share one HDET. Specifically, the method comprises the following steps:
all communication frequency bands in the 9205 platform project are compensated through a group of HDETs, and coupling degrees of couplers are different at medium and low frequencies, so that supersaturation of communication equipment at the medium frequency is easily caused, and under-saturation of the communication equipment at the low frequency is caused, so that the output power of the communication equipment at the medium and low frequencies is inaccurate. Therefore, the embodiment of the utility model provides an output power control device of communication equipment and a communication system.
An output power control apparatus and a communication system of a communication device of an embodiment of the present invention will be described below with reference to the accompanying drawings. In the output power control device of the communication equipment, power compensation matched with frequency intervals of different communication frequency bands is realized by arranging a plurality of power compensation circuits, so that the over-saturation or under-saturation phenomenon of the communication equipment in different communication frequency bands is avoided, and the accuracy of the output power of the communication equipment is effectively improved. Therefore, the technical problems that in the related art, the communication equipment is only provided with one group of power detection circuits, the accuracy of the output power of the communication equipment at the medium and low frequency is greatly reduced, and the like are solved.
Specifically, fig. 1 is a block schematic diagram of an output power control apparatus of a communication device according to an embodiment of the present invention.
As shown in fig. 1, the output power control device 10 of the communication apparatus includes: coupler 100, multi-path power compensation circuit 200, switching assembly 300 and control assembly 400.
Wherein the coupler 100 is connected to a communication device; the power compensation circuit 200 is used for compensating the power of the communication equipment, wherein the compensation power of each power compensation circuit is respectively matched with the frequency intervals of different communication frequency bands of the communication equipment; the switch module 300 is respectively connected with the coupling end of the coupler 100 and each power compensation circuit; the control component 400 is respectively connected to the communication device and the switch component 300, and the control component 400 is configured to control the switch component to turn on a corresponding power compensation circuit according to a frequency interval where a current communication frequency band of the communication device is located.
The communication device may be a transceiver, etc., which is not limited in this respect. The control unit 400 may be a Central Processing Unit (CPU), and the like, and is not particularly limited.
It can be understood that, in the embodiments of the present invention, multiple power compensation circuits may be set according to requirements, so that the supplementary power may be matched with frequency intervals of different communication frequency bands, thereby avoiding an over-saturation or under-saturation phenomenon of the communication device in different communication frequency bands, and effectively improving accuracy of output power of the communication device.
In this embodiment, the switch module 300 includes a first connection terminal and a plurality of second connection terminals, wherein the first connection terminal is connected to the coupling terminal of the coupler, each of the second connection terminals is connected to one end of each of the power compensation circuits, and the other end of each of the power compensation circuits is connected to the communication device.
It should be noted that the type of the switch assembly 300 can be specifically selected according to actual requirements, for example, a single-pole double-throw switch can be selected, and this is not particularly limited.
In the present embodiment, the switch assembly 300 includes: the switch body and set up the piece that switches on the switch body, the piece that switches on is used for switching on corresponding power compensation circuit.
It can be understood that, in the embodiment of the present invention, different power compensation circuits can be conducted through the conducting element, so as to meet the power supplement requirements of different communication frequency bands.
In this embodiment, each power compensation circuit includes: a power detection circuit and an attenuator. One end of the power detection circuit is connected with the second connecting end of the switch assembly; one end of the attenuator is connected with the other end of the power detection circuit, and the other end of the power detection circuit is connected with the communication equipment.
Therefore, by adding the switch component and the attenuator, the embodiment of the utility model not only can meet the requirement that all communication frequency bands can be detected, but also can solve the problem that the communication equipment is over-saturated or under-saturated due to unmatched selection of the attenuation network, and effectively improves the accuracy of the output power of the communication equipment.
Alternatively, as shown in fig. 2, the attenuation network of the attenuator may be a T-network or a pi-network, and the embodiment of the present invention may adjust the corresponding resistance value according to actual needs to adjust the attenuation amount.
It should be noted that the number of the power compensation circuits may be specifically set according to actual requirements, for example, the multi-path power compensation circuit 200 includes a first power compensation circuit and a second power compensation circuit, which is not limited in this respect.
The output power control apparatus of the communication device will be explained by using an embodiment, as shown in fig. 3, taking the multi-path power compensation circuit 200 including the first power compensation circuit 210 and the second power compensation circuit 220 as an example, taking the switch component 300 as the SPDT, and taking the control component 400 as the CPU as an example. Specifically, as shown in fig. 3, the apparatus 10 of the embodiment of the present invention includes: a single pole double throw switch SPDT, a coupler 100, a first power compensation circuit 210, a second power compensation circuit 220, and a CPU.
The first power compensation circuit 210 includes a first attenuator 201 and a first power detection circuit HDET1, and the second power compensation circuit 220 includes a second attenuator 202 and a second power detection circuit HDET 2; the output end of the communication equipment is connected with the input end IN of the coupler 100, the output end OUT of the coupler 100 is connected with an antenna, the coupling end CPL of the coupler 100 is connected with the movable end of the SPDT, the first fixed end RF1 of the SPDT is connected with one end of a first power detection circuit HDET1, the other end of the first power detection circuit HDET1 is connected with one end of a first attenuator 201, and the other end of the first attenuator 201 is connected with the communication equipment; the second fixed end RF2 of the SPDT is connected with one end of a second power detection circuit HDET2, the other end of the second power detection circuit HDET2 is connected with one end of a second attenuator 202, and the other end of the second attenuator 202 is connected with communication equipment; the CPU is respectively connected with the communication equipment and the SPDT.
The operation principle of the output power control apparatus of the communication device shown in fig. 3 is shown in fig. 4, and specifically includes: when the communication equipment works normally in the LTE frequency band, the CPU judges according to the frequency corresponding to the received communication frequency band, if the communication frequency band is an intermediate frequency (more than 1G and less than 2G), the CPU controls the SPDT to switch on a path corresponding to RF1 and switch off a path corresponding to RF 2; if the communication frequency band is low frequency (less than 1G), the CPU controls the SPDT to switch on a path corresponding to the RF2 and switch off a path corresponding to the RF 1. Therefore, compared with the prior art in which only one group of power detection circuits is arranged, the embodiment of the utility model can be divided into two groups of HDET matching for switching, one group of HDET is respectively used for the intermediate frequency and the low frequency, and the SPDT and one attenuation network are added, so that the requirement of detecting the intermediate and low frequency power can be met, and the problem of over-saturation or under-saturation of communication equipment caused by mismatch of the attenuation network can be solved.
According to the output power control device of the communication equipment provided by the embodiment of the utility model, the power compensation matched with the frequency intervals of different communication frequency bands is realized by arranging the plurality of power compensation circuits, so that the over-saturation or under-saturation phenomenon of the communication equipment in different communication frequency bands is avoided, and the accuracy of the output power of the communication equipment is effectively improved.
In addition, an embodiment of the present invention further provides a communication system, including: a communication device and an antenna; the output power control device of the communication apparatus of the above embodiment. Due to the arrangement of the output power control device of the communication equipment in the embodiment, the phenomenon of over-saturation or under-saturation of the communication equipment in different communication frequency bands can be avoided, and the accuracy of the output power of the communication equipment is effectively improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "N" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An output power control apparatus of a communication device, comprising:
a coupler connected to the communication device;
the power compensation circuits are used for performing power compensation on the communication equipment, wherein the compensation power of each power compensation circuit is respectively matched with the frequency intervals of different communication frequency bands of the communication equipment;
the switch assembly is respectively connected with the coupling end of the coupler and each path of power compensation circuit;
and the control component is respectively connected with the communication equipment and the switch component and is used for controlling the switch component to conduct a corresponding power compensation circuit according to a frequency interval where the current communication frequency band of the communication equipment is located.
2. The apparatus of claim 1, wherein the switch assembly comprises a first connection terminal and a plurality of second connection terminals, wherein the first connection terminal is connected to the coupling terminal of the coupler, each of the second connection terminals is connected to one terminal of each of the power compensation circuits, and the other terminal of each of the power compensation circuits is connected to the communication device.
3. The apparatus of claim 2, wherein the switch assembly comprises:
a switch body;
and the conducting piece is arranged on the switch body and is used for conducting the corresponding power compensation circuit.
4. The apparatus of claim 2, wherein the per-power compensation circuit comprises:
one end of the power detection circuit is connected with the second connecting end of the switch module;
and one end of the attenuator is connected with the other end of the power detection circuit, and the other end of the power detection circuit is connected with the communication equipment.
5. The apparatus of claim 4, wherein the attenuation network of the attenuator is a T-network or a Π -network.
6. The apparatus of any of claims 1-5, wherein an input of the coupler is connected to an output of the communication device, and an output of the coupler is connected to an antenna.
7. The apparatus of any of claims 1-5, wherein the multi-path power compensation circuit comprises a first power compensation circuit and a second power compensation circuit.
8. The apparatus of claim 7, wherein the switch assembly is a single pole double throw switch.
9. The apparatus of claim 1, wherein the communication device is a transceiver.
10. A communication system, comprising:
a communication device and an antenna; and
output power control means for a communication device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220657865.5U CN217037180U (en) | 2022-03-23 | 2022-03-23 | Output power control device of communication equipment and communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220657865.5U CN217037180U (en) | 2022-03-23 | 2022-03-23 | Output power control device of communication equipment and communication system |
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| Publication Number | Publication Date |
|---|---|
| CN217037180U true CN217037180U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220657865.5U Active CN217037180U (en) | 2022-03-23 | 2022-03-23 | Output power control device of communication equipment and communication system |
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| CN (1) | CN217037180U (en) |
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- 2022-03-23 CN CN202220657865.5U patent/CN217037180U/en active Active
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