CN114171875B

CN114171875B - Combiner and indoor branch system

Info

Publication number: CN114171875B
Application number: CN202210132129.2A
Authority: CN
Inventors: 余超; 肖扬; 李志军; 刘亚; 仇一平; 林衡华; 熊尚坤
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-05-17
Anticipated expiration: 2042-02-14
Also published as: CN114171875A

Abstract

The utility model provides a combiner and room branch system belongs to communication technology field. This combiner device includes: a first input pin for receiving a first input signal; a second input pin for receiving a second input signal; a first output pin for outputting a first output signal, the first output signal comprising at least a portion of a first input signal; a second output pin for outputting a second output signal; a third output pin for outputting a third output signal, the third output signal comprising at least a portion of the first input signal and at least a portion of the second input signal; the first-stage bridge comprises a first input port, a second input port, a first output port and a second output port, the first input port is connected with a first input pin, and the first output port is connected with a first output pin; and the second-stage bridge comprises a third input port, a fourth input port, a third output port and a fourth output port, and the third output port and the fourth output port are respectively connected with the second output pin and the third output pin.

Description

Combiner and indoor branch system

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a combiner device and an indoor distribution system.

Background

With the development of mobile internet, mobile data traffic and applications will show a tendency of explosive growth, and related statistical data show that 70% -80% of mobile data services occur in indoor environment, so that indoor coverage is a key point of attention of operators in the near future and in the future, and most of 5G service applications (virtual reality, high-definition video, intelligent manufacturing and the like) are indoor applications at present. In order to improve the indoor coverage effect and accelerate the introduction of a 5G network into an indoor distribution system, operators vigorously organize indoor distribution transformation construction work, and the competition of indoor deep markets becomes the competition focus of the operators.

Compared with other mobile communication systems, the improvement of wireless identification is a multiple-input multiple-output technology, but for an indoor distribution system (short for indoor distribution system), a traditional passive chamber is divided into a single-path chamber distribution system, 5G MIMO (multiple-in multiple-out) cannot be realized, the existing 5G chamber is divided into two paths for transformation, a novel low-cost transformation method, namely two-path coupling transformation, is adopted for the two-path coupling transformation, a two-path trunk mode is needed on a trunk, and a two-path signal and a multiple-stream signal are combined to a flat layer, but the original device has the problem of poor two-path balance.

For example, the two-way coupler only has two input port signals, the isolation between the input port 1 and the output port 2 reaches 20dB, only 1% of the signals can pass through, the S1 signal of the input port 1 arrives at the output port 2 weakly, the input port 2 and the output port 2 are in a through relationship, and the S2 signal of the input port 2 arrives at the output port 2 strongly, so that the level difference between S1 and S2 of the mixed signal in the output port 2 is larger, and similarly, the level difference between S1 and S2 in the output port 1 is also larger.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure.

Disclosure of Invention

The embodiment of the disclosure provides a combiner, which can be used for improving the level balance between signals in an output port.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

The embodiment of the present disclosure provides a combiner device, including: a first input pin for receiving a first input signal;

a second input pin for receiving a second input signal;

a first output pin for outputting a first output signal, the first output signal comprising at least a portion of the first input signal;

a second output pin for outputting a second output signal, the second output signal comprising at least a portion of the first input signal and at least a portion of the second input signal;

a third output pin for outputting a third output signal, the third output signal comprising at least a portion of the first input signal and at least a portion of the second input signal;

the first-stage bridge comprises a first input port, a second input port, a first output port and a second output port, the first input port is connected with the first input pin, and the first output port is connected with the first output pin;

and the second-stage bridge comprises a third input port, a fourth input port, a third output port and a fourth output port, and the third output port and the fourth output port are respectively connected with the second output pin and the third output pin.

The disclosed embodiment provides an indoor subsystem, including: at least one combining device as described in any of the disclosed embodiments;

at least one of the first output signal, the second output signal and the third output signal is used for covering a room leveling floor of a floor where the combiner is located.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic diagram of an antenna system and an access network device in the related art.

Fig. 2 schematically illustrates a schematic diagram of a combining apparatus according to an embodiment of the present disclosure.

Fig. 3 schematically shows a schematic diagram of a combining apparatus according to another embodiment of the present disclosure.

Fig. 4 schematically shows a schematic diagram of a combining apparatus according to yet another embodiment of the present disclosure.

Fig. 5 schematically shows a schematic diagram of a combining apparatus according to yet another embodiment of the present disclosure.

Fig. 6 schematically illustrates a networking schematic diagram of a dual-flow combining device in a dual-path coupling chamber according to an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as 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 concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.

The described features, structures, or characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.

The drawings are merely schematic illustrations of the present disclosure, in which the same reference numerals denote the same or similar parts, and thus, a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in at least one hardware module or integrated circuit, or in different networks and/or processor means and/or microcontroller means.

In this specification, the terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of at least one element/component/etc.; the terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.

As shown in fig. 1, an antenna system and an access network device provided in the related art are provided, where the antenna system and the access network device use a bridge closed-loop networking mode, a third port of a first bridge module outputs a loop to a second port of a second bridge module, and 2 bridges have no coupling port output and can only form a 2-in 2-out system; and the circuit of the loop-back can cause the signals of the two input ports to form a plurality of multipath signals, although the multipath signals can be combined at the terminal side, the combining efficiency cannot reach 100%, and loss exists. Meanwhile, because the antenna system and the access network equipment adopt a closed-loop networking mode, signals are transmitted in the annular circuit, the signal loss is large, and the indoor distribution signal coverage is not facilitated.

And the two-way coupling chamber needs a 2-in 3-out system, the embodiment of the present disclosure adopts a chain connection manner, as shown in the embodiments of fig. 2 and fig. 3, a 2-in 3-out structure is formed by using two bridges (a first-stage bridge and a second-stage bridge), an output port 7 or an output port 8 is used as a coupling port for output, and each output port keeps signal orthogonality.

The related art also provides a double-channel cavity coupler with the same-frequency combining function and a working method, but the balance of two signals output by an output port cannot be kept, and each output port only outputs a single-channel signal.

The embodiment of the present disclosure provides a combiner device, which may include:

a first input pin operable to receive a first input signal;

a second input pin operable to receive a second input signal;

a first output pin that may be used to output a first output signal that may include at least a portion of the first input signal;

a second output pin operable to output a second output signal, the second output signal may include at least a portion of the first input signal and at least a portion of the second input signal;

a third output pin operable to output a third output signal, which may include at least a portion of the first input signal and at least a portion of the second input signal;

a first stage bridge, which may include a first input port, a second input port, a first output port, and a second output port, wherein the first input port may be connected to the first input pin, and the first output port may be connected to the first output pin;

the second-stage bridge may include a third input port, a fourth input port, a third output port, and a fourth output port, and the third output port and the fourth output port may be connected to the second output pin and the third output pin, respectively.

In an exemplary embodiment, at least one of the first output signal, the second output signal, and the third output signal includes a level balance between two or more input signals; and/or

The first output signal, the second output signal, and the third output signal are orthogonal.

The combining device provided by the embodiment of the present disclosure may be a dual-flow combining device, or may also be a multi-flow combining device, where the dual-flow combining device is to combine two input signals into one path, and the multi-flow combining device is to combine three or more input signals into one path.

The combining device and the room distribution system provided in the embodiment of the present disclosure are illustrated with reference to fig. 2 to 6.

The embodiments of fig. 2 and fig. 3 are illustrated as a dual-flow combining device, and the embodiments of fig. 4 and fig. 5 are illustrated as a multi-flow combining device.

The disclosure belongs to the field of low-cost indoor distribution of mobile communication, particularly relates to a double-path coupling/multi-path coupling low-cost indoor distribution transformation core device, and provides a 5G double/multi-stream signal combining device and method.

A room division refers to an indoor distribution system. An indoor distribution system is a solution for improving a mobile communication environment in a building to ensure ideal signal coverage in an indoor area. The construction of the indoor distribution system can comprehensively and effectively improve the call quality in the building, improve the call completing rate of the mobile phone, open up a high-quality indoor mobile communication area, improve the capacity of the network and integrally improve the service level of the mobile network.

In an exemplary embodiment, the second input port of the first stage bridge may be used for connecting a load;

the second output port is connected with the third input port;

the fourth input port may be connected to the second input pin.

In an exemplary embodiment, the first stage bridge and the second stage bridge may be bisected bridges and/or non-bisected bridges. That is, in some embodiments, the first stage bridge and the second stage bridge may both be bisected bridges. In other embodiments, the first stage bridge and the second stage bridge may both be non-equal bridges. In still other embodiments, the first stage bridge may be an equal-dividing bridge and the second stage bridge may be a non-equal-dividing bridge. In still other embodiments, the first stage bridge may be a non-equally spaced bridge and the second stage bridge may be an equally spaced bridge.

In an exemplary embodiment, a level difference between the first input signal and the second input signal of at least one of the second output signal, the third output signal is within a predetermined range. Such that the level between the first input signal and the second input signal in the second output signal is balanced and/or the level between the first input signal and the second input signal in the third output signal is balanced.

In an exemplary embodiment, if the first-stage bridge is a non-equal bridge, the power distribution ratio of the first output port and the second output port of the first-stage bridge may be any one of 2, 5, 6, 7, 10dB, and the like;

if the second-stage bridge is a non-equal bridge, the power distribution ratio of the third output port and the fourth output port of the second-stage bridge may be any one of 2, 5, 6, 7, 10dB, and the like.

The output port signals of the subsystem of the double-path coupling chamber also need to be used as signal sources for floor covering, and S1 and S2 signals in two ports need to be balanced to ensure double-path performance.

For example, in fig. 2, the outlets 3, 8 and 7 may cover floors, and the signal source is a signal source that is used by the signal output from these several ports as a signal source of a flat-floor distribution system. For the terminal floor, the output signals of the two output ports, i.e. the output port 8 or the output port 7, are used as flat-layer source, so the signals a and b (assuming S1 and S2 signals, respectively) also need to be kept relatively balanced, and the difference between the levels of the signals a and b should be kept within 10dB according to laboratory verification. In the embodiment of fig. 2, the outlets 8 are more balanced and the outlets 3 are less balanced.

In the embodiment of the present disclosure, by using a bridge scheme, signal balance is achieved by using two bridges (a first-stage bridge and a second-stage bridge) to distribute signals, and signal balance of S1 and S2 of two output ports (for example, output port 7 and output port 8) can be achieved.

The embodiment of the present disclosure may provide a dual/multi-flow combining device with low cost and high balance, and improve the dual-path coupling chamber performance/multi-path coupling chamber performance.

The double/multiple-stream combining device provided in the embodiment of the present disclosure has a general idea that a double-stream, multiple-stream, and low insertion loss combining mode is implemented by using a two-stage bridge (optionally, a power divider may be further included, for example, a first power divider or a second power divider) cascading mode, on one hand, the two-stage bridge mode may reduce loss compared to a multi-stage mode, that is, a mode in which three or more bridges are cascaded, and on the other hand, the two-stage bridge cascading mode may further ensure orthogonality of a two-way coupling chamber subsystem/a multi-way coupling chamber subsystem.

The double/multi-stream combiner device provided by the embodiment of the disclosure can simultaneously input double/multi-stream signals, realize double/multi-stream combining, further improve the branch performance of the double-path coupling chamber/the branch performance of the multi-path coupling chamber, and meet the requirements of the double-path coupling chamber on various scenes.

The double/multi-stream combiner device provided by the embodiment of the disclosure can realize lower distribution loss such as 3dB, 2dB and the like, and meet various actual deployment requirements of a two-way coupling chamber branch/multi-way coupling chamber branch.

The dual/multi-stream combining device provided by the embodiment of the present disclosure mainly includes: the first-stage bridge and the second-stage bridge may optionally further include a power divider (abbreviated as a power divider).

The double/multi-stream combining device provided by the embodiment of the disclosure includes the realization of double/multi-stream signal combining, the realization of output port signal orthogonality, and the balanced combining of the double-stream combining method through two stages of electric bridges.

As shown in fig. 2, the dual-flow combining device 200 may include a first-stage bridge and a second-stage bridge. The first stage bridge may comprise an input port 1 (first input port), a second input port, an output port 3 (first output port), and an output port 4 (second output port), and the second stage bridge may comprise an input port 5 (third input port), an input port 6 (fourth input port), an output port 7 (third output port), and an output port 8 (fourth output port).

Referring to fig. 2, the input port 1 may be connected to a first input pin 210 for receiving a first input signal, i.e., an a signal; the second input port can be connected with a load; output port 3 may be connected to a first output pin 230 for outputting a first output signal, which may include at least a portion of the first input signal a via the first stage bridge; the input port 5 can be connected with the output port 4, namely, the second output port is connected with the third input port; the input port 6 may be connected to a second input pin 220 for receiving a second input signal, i.e. a b signal; the output port 7 may be connected to the second output pin 240 for outputting a second output signal; the output port 8 may be connected to a third output pin 250 for outputting a third output signal. And enabling the second output signal and the third output signal to comprise at least part of the first input signal a and at least part of the second input signal b through the first-stage bridge and the second-stage bridge.

The dual-stream combining device provided in the embodiment of fig. 2 may include a dual-stream signal combining implementation and an output port signal quadrature implementation; the double-current combining method carries out balanced combining through two stages of electric bridges.

The dual-flow combining device 200 can output a part of the signal a to the output port 4 through the input port 1 of the first-stage bridge, and the output port 4 directly connects with the input port 5 of the second-stage bridge to output the signal a to the output port 7 and the output port 8.

The dual-current combining device 200 may output the b signal to the output port 7 and the output port 8 through the second-stage bridge by passing the b signal through the input port 6 of the second-stage bridge.

As shown in fig. 2, the signals a and b are simultaneously combined to the output port 7 and the output port 8, and the signals a and b combined to the output port 7 can achieve the intensity balance of the two signals through the non-equal proportion of the bridge.

In the embodiment of the present disclosure, the non-equal proportion of the bridge means that a signal a input by an input port 1 of a non-equal-division bridge is used, for example, the signal levels of an output port 3 and an output port 4 are different, and the amplitude difference may be 1dB, 2dB, 3dB, etc., at two output ports, the signal level of a signal input by an input port 2 is different, and the amplitude difference may be-1 dB, -2dB, -3dB, etc., which is exactly opposite to the signal at the input port 1.

With continued reference to fig. 2, the signal a at the input port 1 of the first stage bridge is also output from the output port 3.

In the embodiment of fig. 2, the signal a (first output signal) at the output port 3, the signal a + b (second output signal, but different in phase and amplitude from the signal a + b at the output port 7) at the output port 8, and the signal a + b (third output signal) at the output port 7 are different in phase and amplitude from each other due to the electrical characteristics of the bridge, and the first output signal, the second output signal, and the third output signal at the three output ports are independent and orthogonal to each other. The electrical characteristics of the bridges mean that the amplitude and the phase shift of the signal from the input port 1 to the two output ports are different, and all bridge products have the characteristics, but the phase shift of different bridges is not a fixed value due to the difference in design.

In the embodiment of fig. 2, the output port 3 may be used to cascade a next floor router, the output port 7 or the output port 8 may be used as a coupling port of a floor where the combiner is located, and the output port 7 is used as a coupling port of a floor where the combiner is located below, and the output port 8 is cascaded with the next floor router to exemplify the case, that is, the second output signal of the output port 7 may be used to cover a room leveling floor of the floor where the combiner is located, and the first output signal of the output port 3 and the third output signal of the output port 8 are sent to the next floor router through the dual-path coupling room branch trunk to serve as two input signals of the next floor router to cover the next floor and construct the dual-path coupling room branch. I.e. the first output signal at output port 3 and the third output signal at output port 8 are used as the a 'signal at input port 1 and the b' signal at input port 6 of the next floor junction device, respectively.

The embodiment of fig. 2 may include the following three examples according to the actual application environment:

example one: the bridge cascade is divided equally:

in the first embodiment, the first-stage bridge and the second-stage bridge may be cascaded by two equal bridges, and both the first-stage bridge and the second-stage bridge are 3dB bridges. That is, the first stage bridge and the second stage bridge will equally divide the input signal into two equal parts, for example, the signal a at the input port 1 will be about a/2 to the output port 3, and about a/2 to the output port 4; a/2 of the inlet 5 will be about a/4 to the outlet 7, about a/4 to the outlet 8; the b signal at the input 6 will be about b/2 to the output 7 and about b/2 to the output 8.

In this example, the first balance exists between the first input signal a and the second input signal b in the second output signal output by the coupling port 7, and the second balance exists between the first input signal a and the second input signal b in the third output signal output by the output port 8. The second degree of balance may be approximately equal to the first degree of balance, for example, both may be 3dB, and therefore, any one of the output ports 7 and 8 may be used for flat-layer coverage or for cascading a next-layer circuit device, but the present disclosure does not limit that the first degree of balance and the second degree of balance are identical and may have a reasonable error.

In the embodiment of the present disclosure, the level balance of the first input signal and the second input signal included in the second output signal means that the first balance is within a predetermined range, for example, the power difference between the first input signal and the second input signal included in the second output signal is less than or equal to 10 dB. Similarly, the level balance of the first input signal and the second input signal included in the third output signal means that the second degree of balance is within a predetermined range.

In the embodiment of the present disclosure, the balance degree is inversely proportional to the power difference value between the two input signals included in the output signal, that is, the larger the power difference value between the two input signals included in the output signal is, the worse the balance degree is; otherwise, the better the balance.

The first embodiment is characterized in that the levels a and b in the coupling port 7 and the output port 8 are relatively balanced, so that the combining device is suitable for being used as a two-way coupling chamber final-stage two-flow combining device. According to the above equal division, the coupling port 7 is about a/4+ b/2, the output port 8 is also about a/4+ b/2, which is called relative balance, and the level difference between the a and b signals in the coupling port 7 and the output port 8 is about 3dB, which can meet the requirement of the dual-path coupling chamber division.

The final-stage double-flow combining device is the last-stage double-flow combining device in a double-path coupling chamber, for example, if the master device is on floor 1, the chamber is divided into 10 layers, then the double-flow combining device is not needed to be installed on floors 9 and 10 after the double-flow combining device is installed on the trunk of floor 8, the floors 9 and 10 directly cover the output port 3 and the output port 8 of the double-flow combining device on floor 8, and then the double-flow combining device on floor 8 is the final-stage double-flow combining device.

Example two: non-equally split bridge cascade:

in the second embodiment, two non-equal bridges are cascaded, and the power distribution ratio of the output ports of the two bridges can be 2dB, 5dB, 6dB, 7dB, 10dB, etc. That is, the first stage bridge can be selected from any one of 2dB, 5dB, 6dB, 7dB, 10dB, etc., and the second stage bridge can be selected from any one of 2dB, 5dB, 6dB, 7dB, 10dB, etc.

In the embodiment of the present disclosure, the first stage bridge and the second stage bridge may be selected to have the same power division ratio, for example, both of which are 2 dB. In other embodiments, the first stage bridge and the second stage bridge can be selected to have two different power splitting ratios, for example, 2dB for one and 5dB for the other.

In this example two, the output port 7 outputs the second output signal with the first input signal a and the second input signal b having the third balance therebetween, and the output port 8 outputs the third output signal with the first input signal a and the second input signal b having the fourth balance therebetween, and the third balance is better than the fourth balance, for example, the level difference between the first input signal a and the second input signal b in the second output signal may be substantially close to 0dB, and the level difference between the first input signal a and the second input signal b in the third output signal may be 5dB, but the third balance and the fourth balance still both satisfy less than 10dB, and thus both of the two input signals (i.e., the first input signal a and the second input signal b) in the second output signal and the third output signal are in level balance. However, since the third balance is better than the fourth balance, although either of the outlets 7 and 8 can be used for flat-bed covering or for cascading next-floor circuit devices, the outlet 7 is selected as the coupling port since the balance of the outlet 7 is better than that of the outlet 8.

In the embodiment of the present disclosure, the level balance of the first input signal and the second input signal included in the second output signal means that the third degree of balance is within a predetermined range, for example, the power difference between the first input signal and the second input signal included in the second output signal is less than or equal to 10 dB. Similarly, the level balance of the first input signal and the second input signal included in the third output signal means that the fourth balance is within a predetermined range.

The scheme of the second embodiment has the characteristics that the coupling port (the output port 7) can ensure the balance of the levels a and b, the balance of the levels a and b in the output port 3 and the output port 8 is poor, and the two-way coupling chamber non-final-stage double-flow combiner is suitable for being used as a two-way coupling chamber non-final-stage double-flow combiner.

For example, if the first stage bridge and the second stage bridge are both non-equal-division bridges, less of the a signal is distributed to the output port 4, so that although the input port 5 and the output port 7 are straight-through, the a signal of the output port 7 is still less, and at the same time, less of the b signal is distributed to the output port 7, so that the a and b signals of the output port 7 are less, so that the a and b levels of the coupled port 7 are balanced. For the output port 8, the b signal is more, and the a signal is less; the output port 3 only has the signal a, so the level balance of the output port 3 and the output port 8 is poor.

Example three: the equal-division bridge + the non-equal-division bridge cascade:

in the third scheme of this example, an equal-division bridge + non-equal-division cascade mode is adopted, and different signal distribution ratios are designed through the first-stage bridge and the second-stage bridge, so that losses from the input port to the output port, such as 15dB, 10dB, 7dB, 6dB, 5dB, 3dB and the like (not limited to the above coupling degree), can be flexibly realized. For example, the equal-division bridge is 3dB, the non-equal-division bridge can be 5dB, and other power division ratios can be designed according to requirements.

In the disclosed embodiment, the first-stage bridge may be an equal-dividing bridge, and the second-stage bridge may be a non-equal-dividing bridge. In other embodiments, the first stage bridge may be a non-equal-dividing bridge and the second stage bridge may be an equal-dividing bridge.

In this third example, a fifth degree of balance exists between the first input signal a and the second input signal b in the second output signal output by the coupling port 7, and a sixth degree of balance exists between the first input signal a and the second input signal b in the third output signal output by the output port 8, and the fifth degree of balance is better than the sixth degree of balance. Therefore, although any one of the outlets 7 and 8 may be used for flat-bed covering or for cascading a next-floor circuit device, the outlet 7 is selected as a coupling port because the fifth degree of balance of the outlet 7 is superior to the sixth degree of balance of the outlet 8.

In the embodiment of the present disclosure, the level balance between the first input signal and the second input signal included in the second output signal means that the fifth degree of balance is within a predetermined range, for example, the power difference between the first input signal and the second input signal included in the second output signal is less than or equal to 10 dB. Similarly, the level balance of the first input signal and the second input signal included in the third output signal means that the sixth degree of balance is within a predetermined range.

The third scheme of the embodiment has the characteristics that the levels of a coupling port (output port 7) and b are relatively balanced, the balance of the levels of a and b in the output port 8 is slightly poor (but the balance can generally meet the application requirement), and the balance of the output port 3 is poor, so that the third scheme is suitable for being used as a two-way coupling chamber reciprocal 2 and 3-stage double-flow combiner.

For example, assuming that the first stage bridge is an equal-division bridge and the second stage bridge is a non-equal-division bridge, a/2 signal is distributed to the output port 4, the output port 7 distributes most of a/2 signal because the second stage bridge is a non-equal-division bridge, and b signal in the output port 7 is less because the second stage bridge is a non-equal-division bridge, so that relative balance of a and b signals in the output port is achieved. Most of the b signals exist in the output port 8, and the less a/2 signals can be called as that the S1 and S2 levels in the output port 8 are slightly poor in balance, but the problem that the level difference is within 10dB according to the verification of an actual laboratory is not large, so that the output port 8 can also be used as a coupling port. Because the two signals at the output port 8 have poor balance, the scheme is generally used for realizing a double-current combining device with a small dB number, and is generally used for reciprocal 2 and 3-stage double-current combining.

In an exemplary embodiment, the combining apparatus may further include:

the first power divider may include a fifth input port, a fifth output port, and a sixth output port;

the fifth input port may be connected to the second input pin, the fifth output port may be connected to the second input port, and the sixth output port may be connected to the fourth input port;

the second output port is connected with the third input port.

In an exemplary embodiment, the first stage bridge and the second stage bridge may be bisected bridges and/or non-bisected bridges.

In an exemplary embodiment, the first output signal may further include at least a portion of the second input signal;

a level difference between a first input signal and a second input signal of at least one of the first output signal, the second output signal, and the third output signal is within a predetermined range. Such that the level between the first input signal and the second input signal in the first output signal is balanced, and/or the level between the first input signal and the second input signal in the second output signal is balanced, and/or the level between the first input signal and the second input signal in the third output signal is balanced.

The dual-stream combining device 300 provided in the embodiment of fig. 3 includes a dual-stream signal combining implementation and an output port signal quadrature implementation; the double-current combining method carries out balanced combining through two stages of electric bridges.

As shown in fig. 3, the input port 1 of the first stage bridge of the dual-flow combining device 300 may be connected to a first input pin 310 for receiving a first input signal, i.e., an a signal; in the power divider in the embodiment of fig. 3, i.e. the first power divider, the fifth input port (input port 2) of the power divider may be connected to the second input pin 320 for receiving the second input signal, i.e. the b signal; the fifth output port of the power divider may be connected to the second input port of the first-stage bridge, the sixth output port may be connected to the input port 6 (i.e., the fourth input port) of the second-stage bridge, the output port 3 (i.e., the first output port) of the first-stage bridge may be connected to the first output pin 330, the third output port, i.e., the output port 7, of the second-stage bridge may be connected to the second output pin 340, and the fourth output port, i.e., the output port 8, may be connected to the third output pin 350.

The dual-current combining device 300 in the embodiment of fig. 3 outputs a part of the signal a to the output port 4 through the input port 1 of the first-stage bridge, and the output port 4 is directly connected through the input port 5 of the second-stage bridge, and outputs the signal a to the output port 7 and the output port 8. The signal a at the input port 1 passes through the first stage bridge and is also output from the output port 3.

The input port 2 of the dual-flow combining device 300 in the embodiment of fig. 3 divides the b signal into two paths, and one path outputs the b signal to the output port 7 and the output port 8 through the input port 6 of the second-stage bridge.

The second output signal of the power divider in the embodiment of fig. 3 passes through the second input port of the first stage bridge, and outputs the b signal to the output port 3 through the first stage bridge, and outputs the b signal to the output ports 7 and 8 through the second stage bridge, respectively.

In the three examples of fig. 3, the functions of the power divider may all be the same. For example, the b signal is equally divided into two b/2 signals, one b/2 signal is sent to the first stage bridge, and the other b/2 signal is sent to the second stage bridge.

In the embodiment of fig. 3, the signals a and b are simultaneously combined to the output port 3, the output port 7 and the output port 8, and the signals a and b of the three ports can achieve the intensity balance of the signals a and b by the non-equal division ratio of the bridge.

In the embodiment of fig. 3, the output port 7, and the output port 8 are all signals a + b (but different in phase and amplitude from each other), and the first output signal, the second output signal, and the third output signal of the three ports are independent and orthogonal to each other.

In the embodiment of fig. 3, the output port 7 may be used as a coupling port, the second output signal of the coupling port is used to cover a chamber leveling floor of a floor where the combiner is located, the first output signal of the output port 3 and the third output signal of the output port 8 are sent to a next floor combiner through a dual-coupling chamber branch trunk, and are respectively used as two input signals of the next floor combiner to construct a dual-coupling chamber branch, but the disclosure is not limited thereto.

According to the practical application environment scheme II, three examples can be included:

example one: the bridge cascade is divided equally:

in the first embodiment, the first-stage bridge and the second-stage bridge may be cascaded by two equal bridges, and both the first-stage bridge and the second-stage bridge are 3dB bridges.

In this example one, there is a seventh degree of balance between the first input signal a and the second input signal b in the first output signal output by the output port 3, there is an eighth degree of balance between the first input signal a and the second input signal b in the second output signal output by the output port 7, there is a ninth degree of balance between the first input signal a and the second input signal b in the third output signal output by the output port 8, and the seventh degree of balance is approximately equal to the eighth degree of balance and the ninth degree of balance, for example, all of the three are about 3dB, but there may be a reasonable error between the three. Thus, any of the outlets 3, 7 and 8 can be used for flat-bed covering or for cascading next-floor circuit arrangements, the outlet 7 being selected as the coupling port in the following example.

In the embodiment of the present disclosure, the first input signal and the second input signal included in the first output signal also reach level balance, the level balance of the first input signal and the second input signal included in the first output signal means that the seventh degree of balance is within a predetermined range, the level balance of the first input signal and the second input signal included in the second output signal means that the eighth degree of balance is within a predetermined range, for example, a power difference between the first input signal and the second input signal included in the second output signal is less than or equal to 10 dB. Similarly, the level balance of the first input signal and the second input signal included in the third output signal means that the ninth degree of balance is within a predetermined range.

The first scheme of the embodiment is characterized in that the levels of S1 and S2 in the coupling port 7 and the two output ports (the output port 3 and the output port 8) are relatively balanced, and the first scheme is suitable for being used as a final-stage double-flow combiner of a double-path coupling chamber. That is, the coupling port 7 and the output port 8 are both about a/4+ b/8+ b/4, and the output port 3 is about a/2+ b/4. Namely, the three output ports/two output ports are relatively balanced, and the three output ports/two output ports can be used as a final-stage double-flow combiner.

Example two: non-equally split bridge cascading:

in the second embodiment, two non-equal bridges are cascaded, and the power distribution ratio of the output ports of the two bridges can be 2, 5, 6, 7, 10dB, etc.

In the second example, the output port power distribution ratio of the two non-equal bridges can be set, so that the level balance degree of the signals a and b contained in the output signal output by one of the output port 3, the output port 7 and the output port 8 is better than the level balance degree of the signals a and b contained in the output signals output by the other two output ports. The following description will be given by taking the design that the level balance of the a and b signals included in the second output signal output from the output port 7 in fig. 3 is better than the level balance of the a and b signals included in the first output signal output from the output port 3, and the level balance of the a and b signals included in the third output signal output from the output port 8. At this time, it is assumed that the first input signal a and the second input signal b in the first output signal output from the output port 3 have a tenth degree of balance, the first input signal a and the second input signal b in the second output signal output from the output port 7 have an eleventh degree of balance, and the first input signal a and the second input signal b in the third output signal output from the output port 8 have a twelfth degree of balance, and the eleventh degree of balance is better than the tenth degree of balance and the twelfth degree of balance. The following example therefore selects the output 7 as the coupling port.

In the embodiment of the present disclosure, the level balance of the first input signal and the second input signal included in the second output signal means that the eleventh degree of balance is within a predetermined range, for example, a power difference between the first input signal and the second input signal included in the second output signal is less than or equal to 10 dB.

The scheme of the second embodiment has the characteristics that the coupling port (the output port 7) can ensure balanced levels of a and b, and the levels of a and b in the output ports 3 and 8 are unbalanced, so that the second embodiment is suitable for being used as a non-final-stage double-flow combining device of a double-path coupling chamber. The signals a and b in the output port 7 are not too many, but not too few, so that the coupling port (output port 7) can ensure the balance of the a and b levels. Since a is more and b is less in the output port 3 and b is more and a is less in the output port 8, the levels of a and b are unbalanced in both the output ports 3 and 8.

However, it is understood that in other embodiments, the level balance of the a and b signals included in the third output signal output by the output port 8 in fig. 3 may be better than the level balance of the a and b signals included in the first output signal output by the output port 3 and the level balance of the a and b signals included in the second output signal output by the output port 7. At this time, the twelfth balance degree is superior to the tenth balance degree and the eleventh balance degree, and the twelfth balance degree is within a predetermined range, and the output port 8 may be selected as the coupling port.

In other embodiments, it may also be designed that the level balance of the a and b signals included in the first output signal output by the output port 3 in fig. 3 is better than the level balance of the a and b signals included in the third output signal output by the output port 8 and the level balance of the a and b signals included in the second output signal output by the output port 7 for illustration. At this time, the tenth balance degree is superior to the twelfth balance degree and the eleventh balance degree, and the tenth balance degree is within a predetermined range, and the output port 3 may be selected as the coupling port.

Example three: the equal-division bridge + the unequal-division bridge cascade:

in the third scheme of this example, an equal-division bridge + unequal-division cascade mode is adopted, for example, the equal-division bridge is 3dB, the unequal-division bridge can be 5dB, and other power distribution ratios can be designed according to needs.

In this third example, the level balance of the a and b signals included in the second output signal output from the output port 7 in fig. 3 can be made better than the level balance of the a and b signals included in the first output signal output from the output port 3 and the level balance of the a and b signals included in the third output signal output from the output port 8 by setting the output port power division ratio of the non-equal-division bridge. Assuming that there is a thirteenth degree of balance between the first input signal a and the second input signal b in the first output signal output from the output port 3, there is a fourteenth degree of balance between the first input signal a and the second input signal b in the second output signal output from the output port 7, and there is a fifteenth degree of balance between the first input signal a and the second input signal b in the third output signal output from the output port 8, the fourteenth degree of balance being better than the thirteenth degree of balance and the fifteenth degree of balance. The following example therefore selects the output 7 as the coupling port.

In the embodiment of the present disclosure, the first input signal and the second input signal included in the first output signal may also reach level balance, that is, the level balance of the first input signal and the second input signal included in the first output signal means that the thirteenth balance degree is within a predetermined range, and the level balance of the first input signal and the second input signal included in the second output signal means that the fourteenth balance degree is within a predetermined range, for example, a power difference between the first input signal and the second input signal included in the second output signal is less than or equal to 10 dB. The first input signal and the second input signal included in the third output signal may also reach level balance, that is, the level balance of the first input signal and the second input signal included in the third output signal means that the fifteenth balance degree is within a predetermined range. That is, level balance is maintained between two input signals included in the first output signal, the second output signal, and the third output signal, so that any one of the output ports 3, 7, and 8 can be selected as a coupling port, and the other two output ports that are not selected as coupling ports can be used to cascade the next floor junction device.

The third scheme of the embodiment is characterized in that the coupling port (output port 7), the two output ports (output port 3 and output port 8), the S1 and the S2 are relatively balanced in level, and the third scheme is suitable for being used as a final-stage double-flow combining device of a double-path coupling chamber.

In particular, the outlets 7 occupy most of a/2 and b/2, so that the outlets 7 are relatively balanced. The output ports 3 are a/2 and b/4, and are also relatively balanced. The output port 8 occupies most b/2 and less a/2, which can be referred to as relative balance, because the difference between the signal levels of a and b in the third output signal outputted from the output port 8 does not exceed a predetermined range. At this time, the fourteenth balance degree is better than the thirteenth balance degree, the thirteenth balance degree is better than the fifteenth balance degree, but none of the thirteenth balance degree, the fourteenth balance degree, and the fifteenth balance degree exceeds a predetermined range, and therefore, any one of the output ports 3, 7, and 8 can be used as the coupling port.

In an exemplary embodiment, the second output pin may include a first output sub-pin and a second output sub-pin, the second output signal may include a first output sub-signal and a second output sub-signal, the first output sub-pin may be used to output the first output sub-signal, and the second output sub-pin may be used to output the second output sub-signal;

wherein, the combining device may further include:

a third input pin operable to receive a third input signal, said second input port being connectable to said third input pin such that said first output signal further comprises at least part of said third input signal;

the second power divider may include a sixth input port, a seventh output port, and an eighth output port;

said sixth input port may be connected to said third output port, said seventh output port may be connected to said first output sub-pin, and said eighth output port may be connected to said second output sub-pin, such that said first output sub-signal, said second output sub-signal, and said third output signal each comprise at least a portion of said first input signal, at least a portion of said second input signal, and at least a portion of said third input signal, respectively;

the second output port is connected with the third input port.

In an exemplary embodiment, there is at least one level difference between the first input signal and the third input signal in the first output signal, and between the first input signal, the second input signal, and the third input signal in the first output sub-signal, the second output sub-signal, and the third output signal, within a predetermined range. Such that the level between the first input signal and the third input signal in the first output signal is balanced, and/or the level between the first input signal, the second input signal and the third input signal in the first output sub-signal is balanced, and/or the level between the first input signal, the second input signal and the third input signal in the second output sub-signal is balanced, and/or the level between the first input signal, the second input signal and the third input signal in the third output signal is balanced.

The embodiment of fig. 4 provides a multi-stream combining apparatus 400, which includes a multi-stream signal combining implementation and an output port signal orthogonal implementation; the multi-stream combination method carries out balanced combination through two stages of electric bridges.

As shown in fig. 4, an input port 1, i.e., a first input port, of the first stage bridge of the multi-combining apparatus 400 may be connected to a first input pin 410 for receiving a first input signal, i.e., a signal a; input port 2, the second input port, of the first stage bridge may be connected to third input pin 430 for receiving a third input signal (here assumed to be signal b), and input port 6, the fourth input port, of the second stage bridge may be connected to second input pin 420 for receiving a second input signal (here assumed to be signal c); the output port 3, i.e. the first output port, of the first stage bridge may be connected to the first output pin 440 for outputting a first output signal, the output port 4, i.e. the second output port, of the first stage bridge may be connected to the input port 5, i.e. the third input port, of the second stage bridge, the third output port of the second stage bridge may be connected to the sixth input port of the power divider (here, the second power divider), the third output port of the second stage bridge may be used for outputting a second output signal, and the second output signal may be divided into a first output sub-signal and a second output sub-signal by the power divider, the first output sub-signal is output through an output port 9 (i.e., a seventh output port) of the power splitter, the second output sub-signal is output through an output port 7 (i.e., an eighth output port) of the power splitter, and a fourth output port, i.e., an output port 8, of the second-stage bridge may be connected to the third output pin 460, so as to output the third output signal.

In the embodiment shown in fig. 4, the second output pin may include a first output sub-pin 451 and a second output sub-pin 452, the seventh output port, i.e., output port 9, of the power divider may be connected to the first output sub-pin 451 to output the first output sub-signal, and the eighth output port, i.e., output port 7, may be connected to the second output sub-pin 452 to output the second output sub-signal.

The multi-flow combining device 400 outputs the signal a to the output port 3, the output port 7, the output port 8, and the output port 9 respectively by passing the signal a through the first-stage bridge, the second-stage bridge, and the power divider/coupler through the input port 1 of the first-stage bridge. The power divider in fig. 4 can equally divide the input power into two parts.

The input port 2 of the multi-flow combining device 400 outputs the signal b to the output port 3, the output port 7, the output port 8, and the output port 9 through the first-stage bridge, the second-stage bridge, and the power divider/coupler.

The input port 6 of the multi-flow combining device 400 outputs the c signal to the output port 7, the output port 8, and the output port 9 through the second-stage bridge and the power divider/coupler.

In the embodiment of fig. 4, the signals a and b are simultaneously combined to the output port 3, and the signals a, b and c are simultaneously combined to the output ports 7, 8 and 9. The output port 7 may be connected to the flat-floor distribution system of the floor where the multi-flow combiner device 400 is located as a coupling port of the multi-path coupling chamber branch trunk multi-flow combiner device, that is, the output port 7 may be used as a coupling port, and the output ports 3, 8, and 9 may be used as main output ports to be used as three input signals of the next floor multi-flow combiner device, but the disclosure is not limited thereto.

The output port 3 is an a + b signal, the output ports 7, 8 and 9 are all a + b + c signals, but the signals have phase and amplitude differences, and the first output signal output by the output port 3, the second output signal output by the third output port of the second-stage bridge and the third output signal output by the output port 9 are independent and orthogonal to each other.

According to the practical application environment scheme three, three examples can be included:

example one: equally dividing the bridge cascade:

in one solution of this example, the first-stage bridge and the second-stage bridge may be cascaded by two equal bridges, where both bridges are 3dB bridges.

In this example, it is assumed that a sixteenth degree of balance exists between the first input signal a and the third input signal b in the first output signal output from the output port 3, a seventeenth degree of balance exists between the first input signal a, the second input signal c, and the third input signal b in the first output sub-signal output from the output port 9, an eighteenth degree of balance exists between the first input signal a, the second input signal c, and the third input signal b in the second output sub-signal output from the output port 7, and a nineteenth degree of balance exists between the first input signal a, the second input signal c, and the third input signal b in the third output signal output from the output port 8.

In the embodiment of the present disclosure, the first input signal and the third input signal included in the first output signal may also reach level balance, that is, the level balance of the first input signal and the third input signal included in the first output signal means that the sixteenth degree of balance is within a predetermined range, and the level balance of the first input signal, the second input signal, and the third input signal included in the first output sub-signal means that the seventeenth degree of balance is within a predetermined range. The level balance of the first input signal, the second input signal, and the third input signal included in the second output sub-signal means that the eighteenth degree of balance is within a predetermined range. The first input signal, the second input signal, and the third input signal included in the third output signal may also reach level balance, that is, the level balance of the first input signal, the second input signal, and the third input signal included in the third output signal means that the nineteenth degree of balance is within a predetermined range.

Since the seventeenth balance degree, the eighteenth balance degree and the nineteenth balance degree are all within the predetermined range, any one of the output port 9, the output port 7 and the output port 8 may be used as a coupling port of the room leveling system of the floor where the multi-flow combining device 400 is located, and the output port 7 is used as a coupling port for example in the following, that is, the second output sub-signal output by the output port 7 is used for covering the room leveling of the floor where the multi-flow combining device 400 is located.

In the embodiment of the present disclosure, when a certain output signal includes 3 or more than 3 input signals, the difference between the maximum/strongest level of the input signal and the minimum/weakest level of the input signal in the output signal is used to measure the balance between the 3 or more than 3 input signals included in the output signal. For example, for the third output signal, which contains three input signals a, b, and c, assuming that the level of the a signal in the third output signal is the largest, the level of the c signal in the third output signal is the smallest, and the level of the b signal in the third output signal is the middle, the nineteenth degree of balance can be measured by the difference between the level of the a signal in the third output signal and the level of the c signal in the third output signal.

The first scheme of the embodiment is characterized in that the levels a and b in the output port 3 are relatively balanced, the levels a, b and c in the coupling port 7 and the two output ports 8 and 9 are relatively balanced, and the multi-path coupling device is suitable for being used as a multi-path coupling chamber branch-to-last-stage multi-flow combining device.

For example, coupling port 7 and output port 9 are both about a/8+ b/8+ c/4, i.e., the seventeenth degree of balance is approximately equal to the eighteenth degree of balance, output port 8 is about a/4+ b/4+ c/2, and output port 3 is about a/2+ b/2.

Example two: non-equally split bridge cascading:

in the second scheme of the example, the first-stage bridge and the second-stage bridge may adopt a cascade connection mode of two non-equal bridges, and the power distribution ratio of output ports of the two bridges may be 2dB, 5dB, 6dB, 7dB, 10dB and the like.

In the second example, the power distribution ratio of the output ports of the two non-equal-division bridges is designed such that the level balance degree of the first output sub-signal output from the output port 9 and the second output sub-signal output from the output port 7 is better than that of the third output signal output from the output port 8, or the level balance degree of the third output signal output from the output port 8 is better than that of the first output sub-signal output from the output port 9 and that of the second output sub-signal output from the output port 7, and the power distribution ratio of the output ports of the two non-equal-division bridges is designed such that the level balance degree of the first output sub-signal output from the output port 9 and that of the second output sub-signal output from the output port 7 is better than that of the third output signal output from the output port 8.

Assuming that a twentieth degree of balance exists between the first input signal a and the third input signal b in the first output signal output from the output port 3, a twenty-first degree of balance exists between the first input signal a, the second input signal c and the third input signal b in the first output sub-signal output from the output port 9, a twenty-second degree of balance exists between the first input signal a, the second input signal c and the third input signal b in the second output sub-signal output from the output port 7, and a twenty-third degree of balance exists between the first input signal a, the second input signal c and the third input signal b in the third output signal output from the output port 8. In the embodiment of the present disclosure, the twenty-first balance degree may be equal to or approximately equal to the twenty-second balance degree, and the twenty-first balance degree and the twenty-second balance degree may be better than the twenty-third balance degree, therefore, any one of the output ports 9 or 7 in fig. 4 may be selected as a coupling port of the chamber leveling system of the floor where the multi-stream combining device 400 is located, and hereinafter, taking the output port 7 as a coupling port for example, a first output signal output by the output port 3, a first output sub-signal output by the output port 9, and a third output signal output by the output port 8 are used as three input signals of the multi-stream combining device of the next floor.

It can be understood that by designing the power distribution ratio of the output ports of the two non-equal-division bridges, the level balance degree of the third output signal output by the output port 8 is better than the level balance degree of the first output sub-signal output by the output port 9 and the second output sub-signal output by the output port 7, and then the third output signal output by the output port 8 can be selected to cover the room leveling floor of the floor where the multi-stream combining device 400 is located, and the first output signal output by the output port 3, the first output sub-signal output by the output port 9, and the second output sub-signal output by the output port 7 are used as three input signals of the multi-stream combining device of the next floor.

In the embodiment of the present disclosure, level balance is maintained among the first input signal, the second input signal, and the third input signal included in the first output sub-signal, and level balance is maintained among the first input signal, the second input signal, and the third input signal included in the second output sub-signal, that is, the twenty-first degree of balance and the twenty-second degree of balance are within a predetermined range.

The feature of the second embodiment is that the coupling port (output port 7 or output port 9) can ensure balanced levels of S1 and S2 (where S1 and S2 refer to signals a, b and c), but levels of S1 and S2 in the two output ports, i.e., output port 3 and output port 8 (for output port 3, S1 and S2 refer to signals a and b, and for output port 8, S1 and S2 refer to signals a, b and c) are unbalanced, and the device is suitable for being used as a multi-path coupling chamber non-final-stage multi-flow combining device.

Fewer a, more b and fewer c in the output 7 may be referred to as output 7 level balancing. It should be noted that the level balance in the embodiment of the present disclosure means that the level difference between two or more signals is within a certain range, and it is not necessarily absolute balance. The output port 8 has a large number of c and a and b small. The number of outlets 9 is a small, b large, and c small. The output port 3 has a large number of a and a small number of b.

Example three: the equal-division bridge + the unequal-division bridge cascade:

in the third scheme of this example, the first-stage bridge and the second-stage bridge may adopt an equal bridge + unequal cascade mode, for example, the equal bridge is 3dB, the unequal bridge may be 5dB, and other power division ratios may be designed according to needs.

In the third example, the power distribution ratio of the output ports of the non-equal-division bridge can be designed, so that the first input signal a and the third input signal b in the first output signal output by the output port 3 reach level balance, and the first output sub-signal output by the output port 9, the second output sub-signal output by the output port 7, and the first input signal a, the third input signal b, and the second input signal c in the third output signal output by the output port 8 reach level balance.

Assuming that a twenty-fourth degree of balance exists between the first input signal a and the third input signal b in the first output signal output from the output port 3, a twenty-fifth degree of balance exists between the first input signal a, the second input signal c and the third input signal b in the first output sub-signal output from the output port 9, a twenty-sixth degree of balance exists between the first input signal a, the second input signal c and the third input signal b in the second output sub-signal output from the output port 7, and a twenty-seventh degree of balance exists between the first input signal a, the second input signal c and the third input signal b in the third output signal output from the output port 8. The twenty-fourth degree of balance, the twenty-fifth degree of balance, the twenty-sixth degree of balance, and the twenty-seventh degree of balance are all within a predetermined range, so that any one of the output port 9, the output port 7, and the output port 8 in fig. 4 may be selected as a coupling port of the room leveling floor system of the floor where the multi-flow combining device 400 is located, and the output port 3, the output port 9, and the output port 8 are used to cascade the multi-flow combining device of the next floor, as exemplified below by selecting the output port 7 as the coupling port.

The third scheme of the embodiment is characterized in that the coupling port (output port 7), the three output ports (output port 3, output port 8 and output port 9) are relatively balanced in a and b levels, and the third scheme is suitable for being used as a multi-path coupling chamber final-stage multi-flow combiner.

For example, the output port 3 is a/2+ b/2. The outlets 7 and 9 are about a/4+ b/4+ less c/2. The output ports 8 are more c, less a/2+ b/2, which can be called relative balance, and level balance means within a predetermined range, not absolute balance.

In an exemplary embodiment, the combining apparatus provided in the embodiments of the present disclosure may further include:

a third input pin operable to receive a third input signal, said second input port being connectable to said third input pin such that said first output signal may also comprise at least part of said third input signal;

a fourth output pin operable to generate a fourth output signal, which may include at least a portion of the first input signal and at least a portion of the third input signal;

a third power splitter, which may include a seventh input port, a ninth output port, and a tenth output port;

the seventh input port may be coupled to the second output port, the ninth output port may be coupled to the fourth output pin, the tenth output port may be coupled to the third input port, and the fourth input port may be coupled to the second input pin, such that the second output signal and the third output signal each include at least a portion of the first input signal, at least a portion of the second input signal, and at least a portion of the third input signal, respectively.

In an exemplary embodiment, there is at least one of the first output signal and the fourth output signal between the first input signal and the third input signal, and the second output signal, the third output signal between the first input signal, the second input signal, and the third input signal, having a level difference within a predetermined range. So that a level balance is maintained between the first input signal and the third input signal in the first output signal, and/or a level balance is maintained between the first input signal and the third input signal in the fourth output signal, and/or a level balance is maintained between the first input signal, the second input signal, and the third input signal in the second output signal, and/or a level balance is maintained between the first input signal, the second input signal, and the third input signal in the third output signal.

The embodiment of fig. 5 provides a multi-stream combining apparatus 500, which includes a multi-stream signal combining implementation and an output port signal quadrature implementation; the multi-stream combination method carries out balanced combination through two stages of electric bridges.

As shown in fig. 5, an input port 1, i.e., a first input port, of the first stage bridge of the multi-combining apparatus 500 may be connected to a first input pin 510 for receiving a first input signal, i.e., a signal a; input port 2, i.e. the second input port, of the first stage bridge may be connected to the third input pin 530 for receiving a third input signal (here assumed to be signal b), and the first output port, i.e. output port 3, of the first stage bridge is connected to the first output pin 540 for outputting a first output signal; the second output port, i.e. the output port 4, of the first-stage bridge is connected to the seventh input port, i.e. the input port 5, of the power divider (in fig. 5, the third power divider), the power divider further includes a ninth output port, i.e. the output port 9 and a tenth output port, the output port 9 is connected to the fourth output pin 551 for outputting a fourth output signal, the tenth output port is connected to the third input port of the second-stage bridge, and the input port 6, i.e. the fourth input port, of the second-stage bridge is connected to the second input pin 520 for receiving a second input signal (here, it is assumed as the signal c); a third output port, i.e., output port 7, of the second stage bridge may be connected to the second output pin 552, and may be configured to output a second output signal; a fourth output port, i.e., output port 8, of the second stage bridge may be connected to a third output pin 560 for outputting a third output signal.

In the embodiment of fig. 5, the multi-stream combining apparatus 500 outputs the a signal to the output port 3, the output port 7, the output port 8, and the output port 9 respectively by passing the a signal through the first-stage bridge, the power divider/coupler, and the second-stage bridge via the input port 1 of the first-stage bridge. The power divider in fig. 5 can equally divide the input power into two.

The input port 2 of the multi-stream combining device 500 outputs the signal b to the output port 3, the output port 7, the output port 8, and the output port 9 through the first-stage bridge, the power divider/coupler, and the second-stage bridge.

The input port 6 of the multi-stream combining device 500 outputs the c signal to the output port 7 and the output port 8 through the second stage bridge.

In the embodiment of fig. 5, the signals a and b are simultaneously combined to the output port 3 and the output port 9, and the signals a, b and c are simultaneously combined to the output port 7 and the output port 8. Output port 7 or output port 8 can connect the flat bed distribution system of the floor that multithread combiner device 500 locates as the coupling mouth that multichannel coupling room divides trunk multithread combiner device, and output port 3, output port 8/output port 7, output port 9 can regard as main output port to three input signal as next floor multithread combiner device.

In the embodiment of fig. 5, the output ports 3 and 9 are signals a + b, the output ports 7 and 8 are signals a + b + c, but the signals have phase and amplitude differences, and the first output signal output from the output port 3, the fourth output signal output from the output port 9, the second output signal output from the output port 7, and the third output signal output from the output port 8 are independent and orthogonal to each other.

According to the practical application environment scheme four, three examples can be included:

example one: the bridge cascade is divided equally:

in one scheme of this example, the first-stage bridge and the second-stage bridge may be cascaded by two equal bridges, where both bridges are 3dB bridges.

In this example, it is assumed that the twenty-eighth degree of balance exists between the first input signal a and the third input signal b in the first output signal output from the output port 3, the twenty-ninth degree of balance exists between the first input signal a and the third input signal b in the fourth output signal output from the output port 9, the thirtieth degree of balance exists between the first input signal a, the second input signal c, and the third input signal b in the second output signal output from the output port 7, and the thirty-eleventh degree of balance exists between the first input signal a, the second input signal c, and the third input signal b in the third output signal output from the output port 8. Since the thirtieth degree of balance is equal to or approximately equal to the thirty-first degree of balance, the output port 7 or the output port 8 in fig. 5 may be selected as a coupling port of the room leveling system of the floor where the multi-flow combining device 500 is located, the output port 3, the output port 9, and the output port 8/the output port 7 are used to cascade three input pins of the multi-flow combining device of the next floor, and the output port 7 is selected as the coupling port for the following description.

In the embodiment of the present disclosure, the first input signal and the third input signal included in the first output signal may also reach level balance, that is, the level balance between the first input signal and the third input signal included in the first output signal means that the twenty-eighth degree of balance is within a predetermined range, the first input signal and the third input signal included in the fourth output signal may also reach level balance, that is, the level balance between the first input signal and the third input signal included in the fourth output signal means that the twenty-ninth degree of balance is within a predetermined range. The first input signal, the second input signal and the third input signal included in the second output signal may also be level-balanced, and the first input signal, the second input signal and the third input signal included in the third output signal may also be level-balanced, that is, the thirtieth degree of balance and the thirty-first degree of balance are both within a predetermined range.

The first scheme of the embodiment is characterized in that the levels a and b in the output port 3 and the output port 9 are relatively balanced, the levels a, b and c in the coupling port 7 are relatively balanced, and the levels a, b and c in the output port 8 are relatively balanced, so that the multi-path coupling chamber branch-final-stage multi-flow combiner is suitable for being used as a multi-path coupling chamber branch-final-stage multi-flow combiner.

For example, output 3 is approximately a/2+ b/2, output 9 is approximately a/4+ b/4, and both output 7 and output 8 are approximately a/8+ b/8+ c/2.

Example two: non-equally split bridge cascading:

In the second example, the level balance degree of the second output signal output by the output port 7 may be better than that of the third output signal output by the output port 8 by designing the power distribution ratio of the output ports of the two non-equal-division bridges, or the level balance degree of the third output signal output by the output port 8 may be better than that of the second output signal output by the output port 7, and the level balance degree of the second output signal output by the output port 7 may be better than that of the third output signal output by the output port 8 by designing the power distribution ratio of the output ports of the two non-equal-division bridges.

Assuming that there is a thirty-fourth balance between the first input signal a and the third input signal b in the first output signal output from the output port 3, there is a thirty-third balance between the first input signal a and the third input signal b in the fourth output signal output from the output port 9, there is a thirty-fourth balance between the first input signal a, the second input signal c and the third input signal b in the second output signal output from the output port 7, and there is a thirty-fifth balance between the first input signal a, the second input signal c and the third input signal b in the third output signal output from the output port 8. In the embodiment of the present disclosure, the thirty-fourth degree of balance may be better than the thirty-fifth degree of balance, and therefore, the output port 7 in fig. 5 may be selected as a coupling port of a room leveling system of a floor where the multi-stream combining device 500 is located, and hereinafter, taking the output port 7 as a coupling port for example, a first output signal output by the output port 3, a fourth output signal output by the output port 9, and a third output signal output by the output port 8 are used as three input signals of the multi-stream combining device of a next floor.

It can be understood that by designing the power distribution ratio of the output ports of the two non-equal-division bridges, so that the level balance degree of the third output signal output by the output port 8 is better than the level balance degree of the second output signal output by the output port 7, the third output signal output by the output port 8 can be selected to cover the room leveling floor of the floor where the multi-stream combining device 500 is located, and the first output signal output by the output port 3, the fourth output signal output by the output port 9, and the second output signal output by the output port 7 are used as three input signals of the multi-stream combining device on the next floor.

In the embodiment of the present disclosure, if the output ports 7 are level-balanced, the level balance of the first input signal, the second input signal, and the third input signal included in the second output signal means that the thirty-fourth balance is within a predetermined range. If the output port 8 is level-balanced, the level balance of the first input signal, the second input signal, and the third input signal included in the third output signal means that the thirty-fifth degree of balance is within a predetermined range.

The second scheme of the embodiment has the characteristics that the coupling port (the output port 7 or the output port 8) can ensure that the signal levels of a, b and c are balanced, but the signal levels of a and b in the two output ports, namely the output port 3 and the output port 9 are unbalanced, so that the second scheme is suitable for being used as a non-final-stage multi-flow combiner of a multi-path coupling chamber.

Example three: the equal-division bridge + the unequal-division bridge cascade:

in the third scheme of this example, the first-stage bridge and the second-stage bridge may adopt an equal bridge + unequal cascade mode, the equal bridge is 3dB, the unequal bridge may be 5dB, and other power distribution ratios may be designed according to needs.

In the third example, by designing the power distribution proportion of the output port of the non-equal-division bridge, the first input signal a and the third input signal b in the first output signal output by the output port 3 are level-balanced, the first input signal a and the third input signal b in the fourth output signal output by the output port 9 are level-balanced, and the second output signal output by the output port 7 and the first input signal a, the third input signal b and the second input signal c in the third output signal output by the output port 8 are level-balanced.

Assuming that there is a thirty-sixth degree of balance between the first input signal a and the third input signal b in the first output signal output from the output port 3, there is a thirty-seventh degree of balance between the first input signal a and the third input signal b in the fourth output signal output from the output port 9, there is a thirty-eighth degree of balance between the first input signal a, the second input signal c and the third input signal b in the second output signal output from the output port 7, and there is a thirty-ninth degree of balance between the first input signal a, the second input signal c and the third input signal b in the third output signal output from the output port 8. Then, the thirty-sixth balance degree, the thirty-seventh balance degree, the thirty-eighth balance degree and the thirty-ninth balance degree are all within a predetermined range, therefore, any one of the output ports 7 and 8 in fig. 5 may be selected as a coupling port of the room leveling system of the floor where the multi-flow combining device 500 is located, and the following description will be given by selecting the output port 7 as a coupling port, and then the output port 3, the output port 9 and the output port 8 are used for cascading the multi-flow combining device of the next floor.

The third scheme of the embodiment is characterized in that the coupling port (output port 7), the three output ports (output port 3, output port 8 and output port 9), the S1 and S2 levels are relatively balanced, and the third scheme is suitable for being used as a multi-path coupling chamber final-stage multi-flow combining device.

In the embodiment of the present disclosure, the power divider in fig. 3, the power divider in fig. 4, and the power divider in fig. 5 may be designed as couplers according to the coupling degree requirement, and specifically determined according to the actual deployment requirement of the indoor distribution.

The dual-flow coupling networking mode is as shown in fig. 6, the signal coverage chamber of the output port 7 of each dual-flow combiner (i.e., the dual-flow combining device) is divided into flat layers, and the signals of the output ports 3 and 8 are sent to the dual-flow combiner of the next floor through the dual-path trunk to be used as two input signals of the next floor, so as to construct a dual-path coupling chamber. Fig. 5 shows 4F (floor), 5F, and 6F for illustration, but the present disclosure is not limited thereto.

In the multi-stream coupling networking mode, the signal coverage chamber of the output port 7 of each multi-stream combiner (i.e., a multi-stream combiner device) is leveled, and the signals of the output ports 3, 8 and 9 are sent to the multi-stream combiner of the next floor through a multi-path trunk so as to serve as three input signals of the multi-stream combiner of the next floor, and a multi-path coupling chamber is constructed.

According to the embodiment of the disclosure, different signal distribution proportions are designed through the electric bridge, so that losses from the input port to the output port, such as 15dB, 10dB, 7dB, 6dB, 5dB, 3dB and the like (not limited to the coupling degree).

The frequency band range of the multi-combiner device provided by the embodiment of the disclosure may include 700-3700MHz, standing wave: less than or equal to 1.5.

The bridges may include, but are not limited to, 25dB, 20dB, 15dB, 10dB, 7dB, 6dB, 5dB, 3dB, etc. depending on the room division design requirements.

For the related art, the scheme provided by the embodiment of the disclosure can realize that the double-stream signal/multi-stream signal is output to the flat-layer signal with approximate distribution loss, and realize signal balance of each path.

For example, as shown in fig. 4, three signals can be input into the input port 1, the input port 2, and the input port 6 at the same time, so as to implement three-way combining, and further improve the performance of the multi-path coupling chamber.

Because the double-path coupler can only realize the coupling degree of more than 5dB, the electric bridge can realize lower distribution loss such as 3dB and the like, and various actual deployment requirements of the branch/multi-path coupling chamber of the double-path coupling chamber are met.

On one hand, the combining device provided by the embodiment of the disclosure can combine two paths of signals and output 3 paths of signals, or combine three paths of signals and output 4 paths of signals; on the other hand, the two signals/multiple signals in each port of the output port are balanced in level, namely the coupling combining level is balanced, the application requirements of the branch/multi-path coupling chamber of the two-path coupling chamber can be met, and the signal balance is good. Meanwhile, the number of signal multipath after passing through the device is reduced, and the system efficiency is high. In addition, on the basis of realizing signal balance of each port, signal orthogonality of each output port can be realized, multi-path signals are output to keep signal orthogonality, signals of different floors are orthogonal after two-path/multi-path signals are mixed, and space MIMO is realized. The scheme provided by the embodiment of the disclosure has low cost, and the combining loss can be flexibly designed according to scenes.

The combining device provided by the embodiment of the disclosure can be applied to low-cost double-path/multi-path coupling chamber-divided MIMO reconstruction scenes and low-cost 5G passive chamber-divided double-path/multi-path coupling new scenes so as to reduce the 5G chamber-divided construction cost and realize chamber-divided performance improvement at low cost.

Further, the embodiment of the present disclosure also provides a room subsystem, which may include:

at least one combining device as described in any of the previous embodiments;

In an exemplary embodiment, the chamber division system may be a two-way coupling chamber division;

the second input port of the first stage bridge can be used for connecting a load;

the second output port may be connected to the third input port;

the fourth input port may be connected to the second input pin.

In an exemplary embodiment, the first-stage bridge and the second-stage bridge may be equal bridges and/or unequal bridges, and the second output pin or the third output pin may be connected to a chamber leveling system of a floor where the combining device is located, so that the second output signal or the third output signal covers a chamber leveling of the floor where the combining device is located.

wherein, the combining device may further include:

the first power divider comprises a fifth input port, a fifth output port and a sixth output port;

the fifth input port is connected with the second input pin, the fifth output port is connected with the second input port, and the sixth output port is connected with the fourth input port;

the second output port is connected with the third input port.

In an exemplary embodiment, the first-stage bridge and the second-stage bridge may be equal bridges and/or unequal bridges, and the first output pin, the second output pin, or the third output pin may be connected to a chamber leveling system of a floor where the combining device is located, so that the first output signal, the second output signal, or the third output signal covers a chamber leveling of the floor where the combining device is located.

In an exemplary embodiment, the chamber subsystem may be a multi-coupling chamber; the second output pin may include a first output sub-pin and a second output sub-pin, the second output signal may include a first output sub-signal and a second output sub-signal, the first output sub-pin may be used to output the first output sub-signal, and the second output sub-pin may be used to output the second output sub-signal;

wherein, the combining device may further include:

said sixth input port may be connected to said third output port, said seventh output port may be connected to said first output sub-pin, and said eighth output port may be connected to said second output sub-pin, such that said first output sub-signal, said second output sub-signal, and said third output signal may each comprise at least a portion of said first input signal, at least a portion of said second input signal, and at least a portion of said third input signal, respectively;

the second output port may be connected to the third input port.

In an exemplary embodiment, the first-stage bridge and the second-stage bridge may be equal bridges and/or unequal bridges, and the first output sub-pin, the second output sub-pin, or the third output pin may be connected to a chamber leveling system of a floor where the combining device is located, so that the first output sub-signal, the second output sub-signal, or the third output signal covers a chamber leveling of the floor where the combining device is located.

In an exemplary embodiment, the chamber subsystem may be a multi-coupling chamber;

wherein, the combining device may further include:

a third input pin operable to receive a third input signal, said second input port being connected to said third input pin such that said first output signal further comprises at least part of said third input signal;

a fourth output pin operable to generate a fourth output signal comprising at least a portion of the first input signal and at least a portion of the third input signal;

Other contents of the indoor distribution system provided by the embodiment of the present disclosure may refer to the embodiment of the combining device described above.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A combiner device, comprising:

a first input pin for receiving a first input signal;

a second input pin for receiving a second input signal;

the second-stage bridge comprises a third input port, a fourth input port, a third output port and a fourth output port, and the third output port and the fourth output port are respectively connected with the second output pin and the third output pin;

a fourth input port of the second-stage bridge is connected with the second input pin; or the fourth input port of the second-stage bridge is connected with the second input pin through a first power divider;

a second output port of the first-stage bridge is connected with a third input port of the second-stage bridge; or a second output port of the first-stage bridge is connected with a third input port of the second-stage bridge through a third power divider;

2. The combining device of claim 1, wherein at least one of the first output signal, the second output signal, and the third output signal comprises two or more input signals having balanced levels; and/or

3. The combining device according to claim 1 or 2, wherein the second input port of the first stage bridge is used for connecting a load;

the second output port is connected with the third input port;

the fourth input port is connected with the second input pin.

4. The combining device of claim 3 wherein the first stage bridge and the second stage bridge are equal-split bridges and/or non-equal-split bridges.

5. The combining device of claim 4, wherein a level difference between a first input signal and a second input signal of at least one of the second output signal and the third output signal is within a predetermined range.

6. The combining device according to claim 4, wherein if the first stage bridge is a non-equal bridge, the power division ratio of the first output port and the second output port of the first stage bridge is any one of 2, 5, 6, 7, and 10 dB;

if the second-stage bridge is a non-equal bridge, the power distribution ratio of the third output port and the fourth output port of the second-stage bridge is any one of 2, 5, 6, 7 and 10 dB.

7. The combining device of claim 1 or 2, further comprising:

the second output port is connected with the third input port.

8. The combining device of claim 7, wherein the first stage bridge and the second stage bridge are equal-split bridges and/or non-equal-split bridges.

9. The combining device of claim 8, wherein the first output signal further comprises at least a portion of the second input signal;

a level difference between a first input signal and a second input signal of at least one of the first output signal, the second output signal, and the third output signal is within a predetermined range.

10. The combining device as claimed in claim 1 or 2, wherein the second output pin comprises a first output sub-pin and a second output sub-pin, the second output signal comprises a first output sub-signal and a second output sub-signal, the first output sub-pin is used for outputting the first output sub-signal, and the second output sub-pin is used for outputting the second output sub-signal;

wherein, the combiner further comprises:

a third input pin for receiving a third input signal, said second input port being connected to said third input pin such that said first output signal further comprises at least part of said third input signal;

the second power divider comprises a sixth input port, a seventh output port and an eighth output port;

the sixth input port is connected to the third output port, the seventh output port is connected to the first output sub-pin, and the eighth output port is connected to the second output sub-pin, so that the first output sub-signal, the second output sub-signal, and the third output signal each include at least a portion of the first input signal, at least a portion of the second input signal, and at least a portion of the third input signal, respectively;

the second output port is connected with the third input port.

11. The combining device of claim 10, wherein the first stage bridge and the second stage bridge are equal-split bridges and/or non-equal-split bridges.

12. The combining device of claim 11, wherein there is a level difference of at least one of the first output signal and a third input signal, and the first output sub-signal, the second output sub-signal, and the third output signal among the first input signal, the second input signal, and the third input signal, within a predetermined range.

13. The combining device of claim 1 or 2, further comprising:

a fourth output pin for generating a fourth output signal, the fourth output signal comprising at least a portion of the first input signal and at least a portion of the third input signal;

the third power divider comprises a seventh input port, a ninth output port and a tenth output port;

the seventh input port is connected to the second output port, the ninth output port is connected to the fourth output pin, the tenth output port is connected to the third input port, and the fourth input port is connected to the second input pin, so that the second output signal and the third output signal respectively include at least part of the first input signal, at least part of the second input signal, and at least part of the third input signal.

14. The combining device of claim 13 wherein the first stage bridge and the second stage bridge are equal-split bridges and/or non-equal-split bridges.

15. The combining device of claim 14, wherein there is a level difference of at least one of the first output signal and the fourth output signal between the first input signal and the third input signal, and the second output signal, the third output signal between the first input signal, the second input signal, and the third input signal within a predetermined range.

16. An indoor subsystem, comprising:

at least one combining device of any one of claims 1-15.

17. The indoor subsystem of claim 16, wherein said indoor subsystem is a two-way coupling indoor subsystem;

the second input port of the first-stage bridge is used for connecting a load;

the second output port is connected with the third input port;

the fourth input port is connected with the second input pin.

18. The indoor distribution system of claim 17, wherein the first stage bridge and the second stage bridge are equal and/or unequal bridges, and the second output pin or the third output pin is connected to an indoor distribution system of a floor where the combining device is located, such that the second output signal or the third output signal covers an indoor distribution of the floor where the combining device is located.

19. The indoor subsystem of claim 16, wherein said indoor subsystem is a two-way coupling indoor subsystem;

wherein, the combiner further comprises:

the second output port is connected with the third input port.

20. The indoor distribution system of claim 19, wherein the first stage bridge and the second stage bridge are equal and/or unequal bridges, and the first output pin or the second output pin or the third output pin is connected to an indoor distribution system of a floor on which the combiner device is located, such that the first output signal or the second output signal or the third output signal covers an indoor distribution of the floor on which the combiner device is located.

21. The chamber portion system of claim 16, wherein the chamber portion system is a multi-coupling chamber portion; the second output pin comprises a first output sub-pin and a second output sub-pin, the second output signal comprises a first output sub-signal and a second output sub-signal, the first output sub-pin is used for outputting the first output sub-signal, and the second output sub-pin is used for outputting the second output sub-signal;

wherein, the combiner device still includes:

the second output port is connected with the third input port.

22. The indoor distribution system of claim 21, wherein the first stage bridge and the second stage bridge are equal and/or unequal bridges, and the first output sub-pin or the second output sub-pin or the third output pin is connected to an indoor distribution system of a floor where the combiner device is located, such that the first output sub-signal or the second output sub-signal or the third output signal covers an indoor distribution of the floor where the combiner device is located.

23. The chamber portion system of claim 16, wherein the chamber portion system is a multi-coupling chamber portion;

wherein, the combiner further comprises:

24. The indoor distribution system of claim 23, wherein the first stage bridge and the second stage bridge are equal and/or unequal bridges, and the second output pin or the third output pin is connected to an indoor distribution system of a floor on which the combining device is located, such that the second output signal or the third output signal covers an indoor distribution of the floor on which the combining device is located.