Fourth order room division method and system

Abstract

The application discloses a four-order room distribution method and system. The method comprises the following steps: determining a target room distribution mode from an outdoor four-way main trunk to an indoor flat layer, wherein the target room distribution mode comprises a first room distribution mode and a second room distribution mode, the first room distribution mode comprises a double-way coupler and a bridge combination mode, and the second room distribution mode comprises a double-way coupler mode; and based on the target room distribution mode, four-port signals acquired from the outdoor four-way main trunk are combined to multiple single-way indoor flat layers for four-flow coverage. The application solves the technical problem of low transmission performance of a single-way room distribution system in the related art.

Description

Technical Field

[0001] This invention relates to the field of telecommunications, and more specifically, to a fourth-order indoor distribution method and system. Background Technology

[0002] Currently, most 5G service applications (virtual reality, high-definition video, smart manufacturing, etc.) are indoor applications. In order to improve indoor coverage and accelerate the introduction of 5G networks into indoor distribution systems, operators are vigorously organizing and carrying out indoor distribution system upgrades and construction.

[0003] In related technologies, a single-path indoor distribution system is generally used. In this single-path indoor distribution system, a relatively high proportion of passive devices are centrally deployed. This deployment method is convenient for maintenance, but the single-path indoor distribution system is single-path, that is, single-stream, and has low transmission performance.

[0004] Therefore, single-path indoor distribution systems in related technologies suffer from low transmission performance.

[0005] There is currently no effective solution to the above problems. Summary of the Invention

[0006] This invention provides a fourth-order indoor distribution method and system to at least solve the technical problem of low transmission performance in single-path indoor distribution systems in related technologies.

[0007] According to one aspect of the present invention, a fourth-order indoor distribution method is provided, comprising: determining a target indoor distribution mode from four outdoor trunk lines to an indoor floor, wherein the target indoor distribution mode includes a first indoor distribution mode and a second indoor distribution mode, the first indoor distribution mode including a dual-path coupler and a bridge combination mode, and the second indoor distribution mode including a dual-path coupler mode; based on the target indoor distribution mode, combining four-port signals obtained from the four outdoor trunk lines to multiple single paths of the indoor floor for four-stream coverage.

[0008] Optionally, when the target indoor distribution method is the first indoor distribution method, the step of combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method includes: inputting the four-port signals into two dual-path couplers respectively to obtain three-port signals of the two dual-path couplers respectively, wherein any two port signals of the three-port signals are orthogonal, and the three-port signals include a coupler output signal, a dual-path coupler output port one and a dual-path coupler output port two; inputting the three-port signals of the two dual-path couplers into a three-bridge circuit respectively to mix, to obtain two output port signals output by the three-bridge circuit respectively, wherein the four output port signals of any two bridge circuits are mutually orthogonal.

[0009] Optionally, the two dual-path couplers and the three-way bridge are deployed in the low-voltage well terminal block connected to the indoor floor.

[0010] Optionally, before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: using a power divider to divide the four signals transmitted on the four outdoor trunk lines to obtain eight signals; and using couplers to couple the signals from different power dividers in pairs among the eight signals to obtain the four-port signals.

[0011] Optionally, before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: coupling the four signals transmitted on the four outdoor trunk lines to obtain the four-port signals through a coupler.

[0012] Optionally, when the target indoor distribution method is the second indoor distribution method, the step of combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method includes: inputting the four-port signals into two dual-path couplers respectively to obtain two coupled signals output by the two dual-path couplers; inputting the two coupled signals into two cascaded dual-path couplers to obtain four output port signals output by the two cascaded dual-path couplers, wherein any two output port signals among the four output port signals are orthogonal to each other.

[0013] Optionally, the two cascaded dual-path couplers are deployed in the low-voltage wiring harness of the indoor floor.

[0014] Optionally, before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: using a power divider to divide the four signals transmitted on the four outdoor trunk lines to obtain eight signals; and using a dual-coupler to couple the signals from different power dividers in pairs among the eight signals to obtain the four-port signals.

[0015] Optionally, before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: coupling the four signals transmitted on the four outdoor trunk lines to obtain the four-port signals through a dual-path coupler.

[0016] According to another aspect of the present invention, a fourth-order indoor distribution system is provided, comprising: a signal source, an outdoor backbone, an indoor floor, a dual-path coupler and / or a bridge, wherein the fourth-order indoor distribution system is used to determine a target indoor distribution method from the four outdoor backbones to the indoor floor, and, based on the target indoor distribution method, to combine four-port signals obtained from the four outdoor backbones to multiple single paths of the indoor floor for four-stream coverage, wherein the target indoor distribution method includes a first indoor distribution method and a second indoor distribution method, the first indoor distribution method including a combination of a dual-path coupler and a bridge, and the second indoor distribution method including a dual-path coupler method.

[0017] In this embodiment of the invention, a combination of dual-path couplers and bridges, or a dual-path coupler method, is used to combine the four-port signals of the outdoor backbone to multiple single paths in the indoor floor for four-stream coverage. Through the coupling effect of the dual-path couplers, the mutual orthogonality between the output signals is achieved, thereby realizing the technical effect of achieving single-path four-stream coverage from the original single-path transmission, and thus solving the technical problem of low transmission performance in single-path indoor distribution systems in related technologies. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of a single-path indoor distribution system with centralized deployment of passive devices in related technologies;

[0020] Figure 2 This is a flowchart of a fourth-order intraventricular separation method according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of an example of a low-cost high-order MIMO indoor distribution system according to an optional embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of Example 2 of a low-cost high-order MIMO indoor distribution system scheme according to an optional embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of Example 1 of a low-cost high-order MIMO indoor distribution system scheme 2 according to an optional embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of Example 2 of a low-cost high-order MIMO indoor distribution system according to an optional embodiment of the present invention. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] Before describing the embodiments of the present invention, the terms used in this application will be explained.

[0028] The Remote Radio Unit (RRU) consists of two parts: the near-end unit (Radio Server) and the far-end unit (RRU). These two parts are connected via fiber optic cable. The interface is based on the open CPRI or IR interface, allowing for stable connection to equipment from mainstream manufacturers. The RS can be installed in a suitable equipment room location, while the RRU is installed at the antenna end. This separates a portion of the traditional base station module. By separating the RS and RRU, cumbersome maintenance work can be simplified to the RS end. One RS can connect to several RRUs, saving space, reducing setup costs, and improving networking efficiency. Furthermore, the fiber optic interface between the two components minimizes signal loss.

[0029] According to an embodiment of the present invention, a method embodiment of a fourth-order indoor distribution method is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0030] As mentioned above, in related technologies, a single-path indoor distribution system is generally used, and a relatively high proportion of these systems employ a centralized deployment of passive components. Figure 1 This is a schematic diagram of a passive device centralized deployment single-path indoor distribution system in related technologies, such as... Figure 1 This deployment method is convenient to maintain, but the single-path indoor distribution system is single-path, meaning it is a single stream, resulting in lower transmission performance. The hallmark improvement of 5G compared to other mobile communication systems is its multiple-input multiple-output (MIMO) technology. However, for indoor distribution systems, traditional passive indoor distribution systems are single-path systems and cannot achieve 5G MIMO, especially high-order MIMO.

[0031] To address the aforementioned issues, this invention provides a method that utilizes the original single-path indoor distribution system (where floor-level devices are centrally deployed in the low-voltage well, with each device independently drawing a single feeder to the floor). This system is low-cost (adding three main trunks to the low-voltage well and replacing passive devices in the low-voltage well, eliminating the need for additional wiring on the floor) and features high-order (4*4) MIMO, effectively improving the performance of the passive indoor distribution system.

[0032] Figure 2 This is a flowchart of a fourth-order intraventricular separation method according to an embodiment of the present invention, such as... Figure 2 As shown, the method includes the following steps:

[0033] Step S202: Determine the target indoor distribution method from the four outdoor main lines to the indoor floor level. The target indoor distribution method includes a first indoor distribution method and a second indoor distribution method. The first indoor distribution method includes a combination of dual-path couplers and a bridge circuit, and the second indoor distribution method includes a dual-path coupler method.

[0034] Step S204: Based on the target indoor distribution method, the four-port signals obtained from the four outdoor trunk lines are combined into multiple single lines on the indoor floor for four-flow coverage.

[0035] Through the above steps, the four-port signals of the outdoor backbone are combined to multiple single channels in the indoor floor using a combination of dual-channel couplers and bridges, or a dual-channel coupler method, to achieve four-stream coverage. By using the coupling effect of the dual-channel coupler, the mutual orthogonality between the output signals is achieved, thereby realizing the technical effect of achieving single-channel four-stream coverage from the original single-channel transmission, and thus solving the technical problem of low transmission performance in single-channel indoor distribution systems in related technologies.

[0036] As an optional embodiment, the first and second indoor distribution methods described above are merely examples, and other methods that make obvious modifications to the first and second indoor distribution methods are also part of this application.

[0037] As an optional embodiment, the above-described fourth-order indoor distribution method can be applied to the indoor distribution of communication signals in various buildings, such as residential buildings, office buildings, factories, and other buildings that require the deployment of communication networks.

[0038] The first and second indoor distribution methods described above will be explained below.

[0039] As an optional embodiment, when the target indoor distribution method is the first indoor distribution method, based on the target indoor distribution method, the four-port signals obtained from the four outdoor main lines are combined to multiple single lines in the indoor floor for four-flow coverage. This includes: inputting the four-port signals into two dual-path couplers respectively to obtain three-port signals from the two dual-path couplers, wherein any two port signals of the three-port signals are orthogonal, and the three-port signals include the output signal of the coupler port, output port one of the dual-path couplers, and output port two of the dual-path couplers; inputting the three-port signals of the two dual-path couplers into a three-bridge circuit respectively for mixing to obtain two output port signals from the three-bridge circuit, wherein the four output port signals of any two bridge circuits are mutually orthogonal. Through the above two dual-path couplers and three-bridge circuits, the four-port signals obtained from the four outdoor main lines can be converted into any two output port signals that are orthogonal, so that the single feeder lines in the indoor floor can be arbitrarily combined to form mutually orthogonal four-flow signals, effectively improving the indoor distribution performance.

[0040] As an optional embodiment, the two dual-path couplers and three-way bridges that achieve the above-mentioned four-flow coverage can be deployed in multiple locations indoors. Optionally, the two dual-path couplers and three-way bridges can be deployed in the low-voltage wiring harness of the indoor floor level. This requires less circuit modification and is less costly.

[0041] As an optional embodiment, before combining the four-port signals obtained from the four outdoor backbones to multiple single channels on the indoor floor for four-stream coverage based on the target indoor distribution system, the acquisition method of the four-port signals can vary depending on the location of the signal source. For example, when the signal source is located on a middle floor of the building, the following method can be used: a power divider is used to divide the four signals transmitted on the four outdoor backbones to obtain eight signals; the signals from different power dividers are coupled in pairs using couplers to obtain four-port signals.

[0042] As an optional embodiment, when the signal source is located on a high floor or low floor of a building, before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines on the indoor floor for four-flow coverage based on the target indoor distribution method, the four-port signals can be obtained by coupling the four signals transmitted on the four outdoor trunk lines through a coupler to obtain the four-port signals.

[0043] As an optional embodiment, when the target indoor distribution system is the second indoor distribution system, based on the target indoor distribution system, the four-port signals obtained from the four outdoor main lines are combined to multiple single lines on the indoor floor for four-stream coverage. This includes: inputting the four-port signals into two dual-path couplers respectively to obtain two coupled signals output by the two dual-path couplers; inputting the two coupled signals into two cascaded dual-path couplers to obtain four output port signals output by the two cascaded dual-path couplers, wherein any two output port signals are orthogonal to each other. Through the coupling effect of the above multiple dual-path couplers, the four-port signals obtained from the four outdoor main lines can be converted into four output port signals where any two signals are orthogonal. This allows the single feeder lines inside the floor to be arbitrarily combined to form four orthogonal four-stream signals, effectively improving the indoor distribution system performance.

[0044] As an optional embodiment, two cascaded dual-path couplers are deployed in the low-voltage wiring harness terminal block connecting to the indoor floor level. By deploying two cascaded dual-path couplers in the low-voltage wiring harness terminal block connecting to the indoor floor level, deployment costs can be effectively reduced.

[0045] As an optional embodiment, as described in the first indoor distribution method above, the four-port signal can also be obtained in various ways when using this second indoor distribution method. For example, before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: using a power divider to divide the four signals transmitted on the four outdoor trunk lines to obtain eight signals; and using a dual-coupler to couple the signals split from different power dividers in pairs among the eight signals to obtain four-port signals.

[0046] Correspondingly, before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, it also includes: coupling the four signals transmitted on the four outdoor trunk lines to obtain four-port signals through a dual-path coupler.

[0047] Based on the above embodiments and optional embodiments, an optional implementation method is provided.

[0048] To address the aforementioned problems in related technologies, this optional embodiment provides a low-cost fourth-order indoor distribution system. The overall idea of ​​this low-cost fourth-order indoor distribution system is to use a dual-path coupler to combine the 4-port signals into a single-path distribution system, keeping the original single-path indoor distribution system in the original floor unchanged (the original single-path indoor distribution system's daily antennas are independently connected by cables from the weak current well), thereby achieving four-flow coverage and improving the performance of the distribution system.

[0049] Option 1:

[0050] One low-cost fourth-order indoor distribution system scheme includes four main channels, dual-channel coupling orthogonal implementation, and bridge signal mixing (to achieve orthogonality between any two output signals). Scheme 1 can be divided into two examples based on the location of the signal source installation.

[0051] Example 1: The signal source is installed on the middle floor.

[0052] Figure 3 This is a schematic diagram of an example of a low-cost, high-order MIMO indoor distribution system scheme according to an optional embodiment of the present invention, as shown below. Figure 3 As shown, the four-channel backbone transmits the 5G RRU's four-port signal source through a power divider. Output port one of the four power dividers covers the upper floors (e.g., floors 5-8), and output port two covers the lower floors (e.g., floors 1-4). Both outputs are then coupled to the floor-level system using couplers. If the number of floor-level antennas exceeds six, the coupled signals can be further coupled or split to increase signal output. Dual-channel couplers can be added to the subsequent dual-channel coupling circuit to achieve output from more antenna ports.

[0053] The dual-path coupling orthogonal implementation connects the four signals coupled from the main trunk to two pairs of dual-path couplers. The output signals of the dual-path couplers are then paired and orthogonal. The principle of dual-path coupling orthogonality is as follows:

[0054] Assuming the signal at input port 1 of the dual-channel coupler is S1 and the signal at input port 2 is S2, then the output signal of the coupler is (taking a 10dB coupler as an example):

[0055] 0.1S1+0.1S2e -j(ωt+π / 2) Note:e -j(ωt+π / 2) The additional 90° phase shift generated at input port 2 by the dual-coupler is the signal at output port 1 of the dual-coupler:

[0056] 0.85S1 (Note: Approximately 0.05S1 is fed into output port 2)

[0057] The output signal of the dual-channel coupler at port 2 is:

[0058] 0.9S² + 0.05S¹ e -j(ωt+π) (Note: The phase shift from input port 1 to output port 2 is approximately 180°)

[0059] The coefficient matrix of any two of the three ports, S1 and S2, has a rank of 2, therefore the output signals of any two ports are orthogonal.

[0060] The bridge signal mixing function combines the output signals of two dual-channel couplers before outputting the final signal. Each bridge's two input ports are connected to the output ports (including coupling ports) of different dual-channel couplers. The bridge's output ports contain the RRU four-port signal, and the four output ports of any two bridges are orthogonal to each other. The orthogonality principle is as follows:

[0061] Assume that the two input signals of bridge 1 are a and b, and the two input signals of bridge 2 are c and d.

[0062] The output signals of the two output ports of bridge 1 are:

[0063] 0.5ae -j(ωt+π / 2) +0.5be -j(ωt+π)

[0064] 0.5ae -j(ωt+π) +0.5be -j(ωt+π / 2)

[0065] The output signals of the two output ports of bridge 2 are

[0066] 0.5ce -j(ωt+π / 2) +0.5de -j(ωt+π)

[0067] 0.5ce -j(ωt+π) +0.5de -j(ωt+π / 2)

[0068] Analyzing the coefficient matrices of the four signals a, b, c, and d in the above four equations, the rank is 4, and the four signals include the four port signals of the source. Therefore, the four output port signals are orthogonal, which can realize 4*4 MIMO.

[0069] The output port of the bridge is connected to the distributed system antenna. When the terminal receives the signals from the four antennas on the same floor, single-cable four-stream coverage can be achieved.

[0070] Example 2: The signal source is installed on the lowest / highest floor.

[0071] Figure 4 This is a schematic diagram of Example 2 of a low-cost high-order MIMO indoor distribution system scheme according to an optional embodiment of the present invention, as shown below. Figure 4 As shown, the four-channel backbone couples the four-port signal source of the 5G RRU to the flat-layer system using couplers. If the number of flat-layer antennas is greater than six, the coupled signals can be coupled or power-divided to increase signal output. In the subsequent dual-channel coupling circuit, dual-channel couplers can be added to achieve more antenna port outputs.

[0072] The dual-path coupling orthogonal implementation connects the four signals coupled from the main trunk to a dual-path coupler in pairs. The dual-path coupler outputs are then orthogonal to each other. The principle of dual-path coupling orthogonality is the same as in Example 1 above.

[0073] The bridge signal mixing function combines the output signals of two dual-channel couplers before outputting the final signal. Each bridge's input port is connected to the output port (including the coupling port) of a different dual-channel coupler. The bridge's output ports contain the RRU four-port signal, and the four output ports of any two bridges are orthogonal to each other, following the same orthogonality principle as in Example 1 above.

[0074] The output port of the bridge is connected to the distributed system antenna. When the terminal receives the signals from the four antennas on the same floor, single-cable four-stream coverage can be achieved.

[0075] Option 2:

[0076] A second low-cost fourth-order indoor distribution system scheme includes a four-channel backbone (the backbone combines signals into two channels via dual-channel coupling and sends them to the floor level), implemented with orthogonal dual-channel coupling. Scheme two can be divided into two instances depending on the location of the signal source installation.

[0077] Example 1: The signal source is deployed on the middle floor.

[0078] Figure 5 This is a schematic diagram of Example 1 of a low-cost high-order MIMO indoor distribution system scheme 2 according to an optional embodiment of the present invention, as shown below. Figure 5 As shown, the four-way backbone transmits the 5G RRU four-port signal source through a power divider. Output 1 of the four-port power divider covers the upper floors (e.g., floors 6-10), and output 2 covers the lower floors (e.g., floors 1-5). The two outputs are then coupled into two signals (including the four-port signal source) using a dual-coupler and input to the level system.

[0079] The dual-path coupling orthogonal implementation connects the two signals coupled from the main trunk to a dual-path coupler, and then connects the indoor distributed antenna using a cascaded dual-path coupler configuration. The output signals of the dual-path coupler are pairwise orthogonal. The principle of dual-path coupling orthogonality is explained in Scheme 1.

[0080] Assuming a four-flow implementation, the two input signals of the dual-path coupler on the 5th floor are m and n, and the two input signals of the 4th floor are g and h.

[0081] The output signals of the two adjacent dual-channel couplers on the 5th floor are (for simplicity, assume that the coupled signals are 1 / 10 of the input signals):

[0082] 0.1me -j(ωt+π / 2) +0.1ne -j(ωt+π)

[0083] 0.1me -j(ωt+π) +0.1fne -j(ωt+3π / 2) +0.05me -j(ωt+2π)

[0084] The output signals of the two adjacent dual-channel couplers on the 4th floor are (for simplicity, it is assumed that the coupled signals are 1 / 10 of the input signals).

[0085] 0.1ge -j(ωt+π / 2) +0.1he -j(ωt+π)

[0086] 0.1ge -j(ωt+π) +0.1he-j(ωt+3π / 2) +0.05ge -j(ωt+2π)

[0087] Analyzing the four signal coefficient matrices m, n, g, and h in the above four equations, the rank is 4, and the four signals include the four port signals of the source. Therefore, the four output port signals are orthogonal, which can realize 4*4 MIMO.

[0088] When the terminal on the 5th floor receives signals from the four adjacent antennas on the 5th and 4th floors, single-cable four-stream coverage can be achieved.

[0089] Example 2: The signal source is deployed on the highest / lowest floor.

[0090] Figure 6 This is a schematic diagram of Example 2 of a low-cost high-order MIMO indoor distribution system according to an optional embodiment of the present invention, as shown below. Figure 6 As shown, the four main trunk lines are coupled into two signals (including the four-port signal of the signal source) using a dual-coupler and input to the leveling system.

[0091] The dual-path coupling orthogonal implementation connects the two signals coupled from the main trunk to a dual-path coupler, and then connects the indoor distributed antenna using a cascaded dual-path coupler configuration. The output signals of the dual-path coupler are pairwise orthogonal. The principle of dual-path coupling orthogonality is explained in Scheme 1.

[0092] The four-flow implementation principle is explained in Example 1 of Scheme 2.

[0093] The following effects can be achieved through the above optional implementation methods:

[0094] For related technologies, it is possible to achieve four-stream performance using a single-path indoor distribution system, achieving high performance at a lower cost.

[0095] Simultaneously achieve signal level balance in each channel of 4*4 MIMO.

[0096] It can achieve MIMO using signals from adjacent floors or signals from the same floor, improving the flexibility of network deployment and making it suitable for most scenarios.

[0097] In this embodiment of the invention, a fourth-order indoor distribution system is also provided, including: a signal source, an outdoor backbone, an indoor floor, a dual-path coupler and / or a bridge, wherein the fourth-order indoor distribution system is used to determine the target indoor distribution method from the four outdoor backbones to the indoor floor, and, based on the target indoor distribution method, to combine the four-port signals obtained from the four outdoor backbones to multiple single paths of the indoor floor for four-stream coverage, wherein the target indoor distribution method includes a first indoor distribution method and a second indoor distribution method, the first indoor distribution method includes a combination of a dual-path coupler and a bridge, and the second indoor distribution method includes a dual-path coupler method.

[0098] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0099] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0100] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0101] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0102] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0103] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0104] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fourth-order intraventricular separation method, characterized in that, include: The target indoor distribution method from the four outdoor main lines to the indoor level is determined, wherein the target indoor distribution method includes a first indoor distribution method and a second indoor distribution method. The first indoor distribution method includes a combination of dual-path couplers and a bridge, and the second indoor distribution method includes a dual-path coupler method. Based on the target indoor distribution method, the four-port signals obtained from the four outdoor trunk lines will be combined into multiple single lines in the indoor floor for four-flow coverage; The first indoor distribution method involves inputting the four-port signals into two dual-path couplers respectively to obtain three-port signals from the two dual-path couplers. Any two of the three-port signals are orthogonal. Each three-port signal includes a coupler output signal, a dual-path coupler output port one, and a dual-path coupler output port two. The three-port signals from the two dual-path couplers are then input into a three-bridge circuit and mixed to obtain two output port signals from the three-bridge circuit. Any two of the four output port signals from the three-bridge circuit are orthogonal to each other. The second indoor distribution method involves inputting the four-port signals into two dual-channel couplers respectively to obtain two coupled signals output by the two dual-channel couplers; inputting the two coupled signals into two cascaded dual-channel couplers to obtain four output port signals output by the two cascaded dual-channel couplers, wherein any two output port signals among the four output port signals are orthogonal to each other.

2. The method according to claim 1, characterized in that, The two dual-path couplers and the three-way bridge are deployed in the low-voltage well terminal block connected to the indoor floor.

3. The method according to claim 1, characterized in that, Before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: A power divider is used to divide the four signals transmitted on the four outdoor main lines to obtain eight signals; The signals from different power dividers in the eight-channel signal are coupled in pairs using couplers to obtain the four-port signal.

4. The method according to any one of claims 2 to 3, characterized in that, Before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: The four signals transmitted on the four outdoor main trunks are coupled together using a coupler to obtain the four-port signals.

5. The method according to claim 1, characterized in that, The two cascaded dual-path couplers are deployed in the low-voltage wiring harness of the indoor floor.

6. The method according to claim 1, characterized in that, Before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: A power divider is used to divide the four signals transmitted on the four outdoor main lines to obtain eight signals; The signals from different power dividers in the eight-channel signal are coupled in pairs using dual-channel couplers to obtain the four-port signal.

7. The method according to any one of claims 1 to 6, characterized in that, Before combining the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-flow coverage based on the target indoor distribution method, the method further includes: The four signals transmitted on the outdoor four-way backbone are coupled together using a dual-channel coupler to obtain the four-port signal.

8. A fourth-order indoor distribution system, characterized in that, include: Signal source, outdoor trunk line, indoor single-level, dual-channel coupler and / or bridge, wherein, The fourth-order indoor distribution system is used to determine the target indoor distribution method from the four outdoor trunk lines to the indoor floor, and, based on the target indoor distribution method, to combine the four-port signals obtained from the four outdoor trunk lines to multiple single lines in the indoor floor for four-stream coverage. The target indoor distribution method includes a first indoor distribution method and a second indoor distribution method. The first indoor distribution method includes a combination of dual-path couplers and a bridge, and the second indoor distribution method includes a dual-path coupler method. The first indoor distribution method involves inputting the four-port signals into two dual-path couplers respectively to obtain three-port signals from the two dual-path couplers. Any two of the three-port signals are orthogonal. Each three-port signal includes a coupler output signal, a dual-path coupler output port one, and a dual-path coupler output port two. The three-port signals from the two dual-path couplers are then input into a three-bridge circuit and mixed to obtain two output port signals from the three-bridge circuit. Any two of the four output port signals from the three-bridge circuit are orthogonal to each other. The second indoor distribution method involves inputting the four-port signals into two dual-channel couplers respectively to obtain two coupled signals output by the two dual-channel couplers; inputting the two coupled signals into two cascaded dual-channel couplers to obtain four output port signals output by the two cascaded dual-channel couplers, wherein any two output port signals among the four output port signals are orthogonal to each other.

Images