CN116261231A - Fourth-order room division method and system - Google Patents

Fourth-order room division method and system Download PDF

Info

Publication number
CN116261231A
CN116261231A CN202211733420.1A CN202211733420A CN116261231A CN 116261231 A CN116261231 A CN 116261231A CN 202211733420 A CN202211733420 A CN 202211733420A CN 116261231 A CN116261231 A CN 116261231A
Authority
CN
China
Prior art keywords
way
signals
indoor
outdoor
port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211733420.1A
Other languages
Chinese (zh)
Inventor
樊渭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Telecom Corp Ltd
Original Assignee
China Telecom Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Telecom Corp Ltd filed Critical China Telecom Corp Ltd
Priority to CN202211733420.1A priority Critical patent/CN116261231A/en
Publication of CN116261231A publication Critical patent/CN116261231A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/33Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a fourth-order room dividing method and a system. Wherein the method comprises the following steps: determining a target room division mode from an outdoor four-way trunk to an indoor flat layer, wherein the target room division mode comprises a first room division mode and a second room division mode, the first room division mode comprises a double-way coupler and bridge combination mode, and the second room division mode comprises a double-way coupler mode; and combining the four-port signals acquired from the outdoor four-way trunk into a plurality of single ways of indoor flat layers for four-stream coverage based on a target indoor division mode. The invention solves the technical problem of low transmission performance of the single-way indoor division system in the related technology.

Description

Fourth-order room division method and system
Technical Field
The invention relates to the field of telecommunications, in particular to a fourth-order room dividing method and system.
Background
Most of the current 5G business applications (virtual reality, high definition video, intelligent manufacturing, etc.) are indoor applications. In order to improve indoor coverage effect and accelerate the introduction of a 5G network in an indoor subsystem, operators greatly organize and develop indoor distribution transformation construction work.
In the related art, a single-way room subsystem is generally adopted, and a passive device centralized deployment mode is adopted in the single-way room subsystem in a high proportion, wherein the deployment mode has convenient maintenance, but the single-way room subsystem is single-way, namely single-way, and has lower transmission performance.
Therefore, the related art single-way indoor division system has a problem of low transmission performance.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a fourth-order room dividing method and a system, which are used for at least solving the technical problem of low transmission performance of a single-way room dividing system in the related technology.
According to an aspect of an embodiment of the present invention, there is provided a fourth-order chamber dividing method including: determining a target room division mode from an outdoor four-way trunk to an indoor flat layer, wherein the target room division mode comprises a first room division mode and a second room division mode, the first room division mode comprises a double-way coupler and bridge combination mode, and the second room division mode comprises a double-way coupler mode; and based on the target room division mode, combining four-port signals acquired from the outdoor four-way trunk into a plurality of single ways of indoor flat layers to perform four-stream coverage.
Optionally, in the case that the target room division mode is the first room division mode, the four-port signal acquired from the outdoor four-way backbone is combined to a plurality of single ways of indoor flat layers for four-stream coverage based on the target room division mode, including: inputting the four-port signals into two double-way couplers respectively to obtain three-port signals of the two double-way couplers respectively, wherein any two port signals in the three-port signals are orthogonal, and the three-port signals comprise coupling port output signals, a double-way coupler output port I and a double-way coupler output port II; and mixing the three-port signals of the two double-path couplers with the two double-input three-bridge respectively to obtain two output port signals respectively output by the three-bridge, wherein the four output port signals of any two of the three-bridge are mutually orthogonal.
Optionally, the two-way couplers and the three-bridge are deployed in a weak well bank accessing the indoor floor.
Optionally, before four-way coverage is performed on a plurality of single ways of combining four-port signals acquired from the outdoor four-way trunk to an indoor flat layer based on the target indoor division mode, the method further comprises: a power divider is adopted to divide the power of four paths of signals transmitted on the outdoor four paths of trunks, so as to obtain eight paths of signals; and coupling signals separated from different power splitters in the eight paths of signals by adopting couplers two by two to obtain the four-port signal.
Optionally, before four-way coverage is performed on a plurality of single ways of combining four-port signals acquired from the outdoor four-way trunk to an indoor flat layer based on the target indoor division mode, the method further comprises: and coupling four paths of signals transmitted on the outdoor four paths of trunks through couplers to obtain the four-port signals.
Optionally, in the case that the target room division mode is the second room division mode, the four-port signal acquired from the outdoor four-way backbone is combined to a plurality of single ways of indoor flat layers for four-stream coverage based on the target room division mode, including: inputting the four-port signals into two double-way couplers respectively to obtain two-way coupling signals output by the two-way couplers; and inputting the two paths of coupling signals into two cascaded double-way couplers to obtain four output port signals output by the two cascaded double-way couplers, wherein any two output port signals in the four output port signals are mutually orthogonal.
Optionally, the two cascaded two-way couplers are deployed in a weak well bank accessing the indoor floor.
Optionally, before four-way coverage is performed on a plurality of single ways of combining four-port signals acquired from the outdoor four-way trunk to an indoor flat layer based on the target indoor division mode, the method further comprises: a power divider is adopted to divide the power of four paths of signals transmitted on the outdoor four paths of trunks, so as to obtain eight paths of signals; and coupling signals separated from different power splitters in the eight paths of signals by adopting a two-path coupler to obtain the four-port signal.
Optionally, before four-way coverage is performed on a plurality of single ways of combining four-port signals acquired from the outdoor four-way trunk to an indoor flat layer based on the target indoor division mode, the method further comprises: and coupling four paths of signals transmitted on the outdoor four paths of trunks through a two-path coupler to obtain the four-port signals.
According to another aspect of the present invention, there is provided a fourth order chamber component system comprising: the system comprises a signal source, an outdoor trunk, an indoor flat layer, a two-way coupler and/or a bridge, wherein the four-stage indoor subsystem is used for determining a target indoor subsystem from the outdoor four-way trunk to the indoor flat layer and combining four-port signals acquired from the outdoor four-way trunk into a plurality of single ways of the indoor flat layer to carry out four-way coverage based on the target indoor subsystem, the target indoor subsystem comprises a first indoor subsystem and a second indoor subsystem, the first indoor subsystem comprises a two-way coupler and bridge combination mode, and the second indoor subsystem comprises a two-way coupler mode.
In the embodiment of the invention, a double-path coupler and bridge combination mode is adopted, or a mode of combining four-port signals of an outdoor trunk to a plurality of single paths of indoor flat layers by a double-path coupler mode is adopted to carry out four-flow coverage, and the purpose of mutual orthogonality among output signals is achieved through the coupling effect of the double-path coupler on the signals, so that the technical effect of realizing the single-path four-flow coverage of the original single-path transmission is realized, and the technical problem of low transmission performance of a single-path indoor subsystem in the related technology is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of a passive device centralized deployment type single-way room subsystem in the related art;
FIG. 2 is a flow chart of a fourth order compartmentalization method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an example one of a low cost high order MIMO chamber subsystem approach in accordance with an alternative embodiment of the present invention;
FIG. 4 is a schematic diagram of an example two of a low cost high order MIMO chamber subsystem approach in accordance with an alternative embodiment of the present invention;
fig. 5 is a schematic diagram of an example two of a low cost high order MIMO indoor subsystem scheme in accordance with an alternative embodiment of the present invention;
fig. 6 is a schematic diagram of two examples of a low cost high order MIMO chamber division system scheme in accordance with an alternative embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Before describing embodiments of the present invention, terms referred to in the present application will be described.
Remote radio unit, fully called: the remote Radio Unit is divided into a near-end machine, namely a wireless baseband control (Radio Server), and a far-end machine, namely a Remote Radio Unit (RRU), which are connected through optical fibers, and the interface is based on an open CPRI or IR interface and can be stably connected with equipment of a main stream manufacturer. The RS can be installed at a proper machine room position, the RRU is installed at an antenna end, so that a part of a previous base station module is separated, the troublesome maintenance work can be simplified to the RS end by separating the RS from the RRU, and one RS can be connected with a plurality of RRUs, thereby saving the space, reducing the setting cost and improving the networking efficiency. Meanwhile, an interface between the two connectors is made of optical fibers, so that the loss is low.
According to an embodiment of the present invention, a method embodiment of a fourth-order compartmental method is provided, it being noted that the steps shown in the flowchart of the figures may be performed in a computer system, such as a set of computer executable instructions, and, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order other than that shown or described herein.
As described above, in the related art, a single-way room subsystem is generally adopted, in which a passive device centralized deployment mode is adopted in a higher proportion, and fig. 1 is a schematic diagram of the passive device centralized deployment type single-way room subsystem in the related art, as shown in fig. 1, where the deployment mode has convenience in maintenance, but the single-way room subsystem is single-way, that is, is single-way, and has lower transmission performance. The improvement of the wireless markedness is a multiple-input multiple-output technology in 5G compared with other mobile communication systems, but for a room subsystem, the traditional passive room is divided into a single-way room subsystem, and 5G MIMO, especially high-order MIMO, cannot be realized.
Aiming at the problems, in the embodiment of the invention, an original single-channel indoor distribution system (a flat-layer device is intensively deployed in a weak electric well, and each device independently pulls a single-channel feeder line to the flat layer) is utilized, the system has low cost (three trunks are added in the weak electric well, a passive device is replaced in the weak electric well, a line is not required to be added in the flat layer), and high-order (4*4) MIMO is provided, so that the performance of the passive indoor distribution is effectively improved.
Fig. 2 is a flow chart of a fourth order compartmentalization method according to an embodiment of the invention, as shown in fig. 2, the method comprising the steps of:
step S202, determining a target room division mode from an outdoor four-way trunk to an indoor flat layer, wherein the target room division mode comprises a first room division mode and a second room division mode, the first room division mode comprises a double-way coupler and bridge combination mode, and the second room division mode comprises a double-way coupler mode;
step S204, based on the target room division mode, four-port signals acquired from the outdoor four-way trunk are combined into a plurality of single ways of indoor flat layers to carry out four-stream coverage.
Through the steps, a double-path coupler and bridge combination mode is adopted, or a mode of combining four-port signals of an outdoor trunk to a plurality of single paths of an indoor flat layer by a double-path coupler mode is adopted to carry out four-flow coverage, and the purpose of mutual orthogonality among output signals is achieved through the coupling effect of the double-path coupler on the signals, so that the technical effect of realizing single-path four-flow coverage by original single-path transmission is achieved, and the technical problem of low transmission performance of a single-path indoor subsystem in the related art is solved.
As an alternative embodiment, the first and second chamber division modes are only examples, and other modes with obvious modifications to the first and second chamber division modes are also part of the present application.
As an alternative embodiment, the fourth-order indoor division method may be applied to indoor divisions of communication signals of various buildings, for example, residential buildings, office buildings, buildings with factories and the like needing communication networks.
The first and second chamber modes are described below.
As an alternative embodiment, in the case that the target room division mode is the first room division mode, four-port signals acquired from four-way trunks outside the room are combined to a plurality of single ways of indoor flat layers for four-stream coverage based on the target room division mode, including: inputting the four-port signals into two double-way couplers respectively to obtain three-port signals of the two double-way couplers respectively, wherein any two-port signals in the three-port signals are orthogonal, and the three-port signals comprise coupling port output signals, a double-way coupler output port I and a double-way coupler output port II; and mixing the three-port signals of the two double-path couplers with the two double-input three-bridge respectively to obtain two output port signals respectively output by the three-bridge, wherein the four output port signals of any two of the three-bridge are mutually orthogonal. Through the two double-way couplers and the three-bridge, four-port signals acquired by the outdoor four-way trunk can be converted into any two-output port signals which are all orthogonal, so that four-stream signals which are orthogonal to each other can be formed by any combination of indoor single-way feeder lines, and the indoor split performance is effectively improved.
As an alternative embodiment, two-way couplers and three-way bridges implementing the four-way coverage described above may be deployed in multiple locations in the room, alternatively, two-way couplers and three-way bridges may be deployed in a weak well wiring bank accessing the flat floor in the room. Thus, the circuit is less in transformation and low in cost.
As an alternative embodiment, before four-port signals acquired from the outdoor four-way trunk are combined to a plurality of single ways of indoor flat layers for four-stream coverage based on a target room division mode, the four-port signals may be acquired in different modes based on different positions of signal sources. For example, when the signal source is located at an intermediate floor location of a building, it may be acquired in the following manner: the power divider is adopted to divide the power of four paths of signals transmitted on the outdoor four paths of trunks to obtain eight paths of signals; and coupling the signals separated from the power splitters in eight paths by adopting couplers two by two to obtain four-port signals.
As an alternative embodiment, when the signal source is located at a high-rise or low-rise of the building, before four-port signals acquired from four-way outdoor trunks are combined into a plurality of single-way indoor flat floors for four-way coverage based on a target indoor division manner, four-port signals may be acquired by: and coupling four paths of signals transmitted on the outdoor four paths of trunks through couplers to obtain four-port signals.
As an alternative embodiment, in the case that the target room division mode is the second room division mode, four-port signals acquired from four-way trunks outside the room are combined to a plurality of single ways of indoor flat layers for four-stream coverage based on the target room division mode, including: inputting the four-port signals into two double-way couplers respectively to obtain two-way coupling signals output by the two-way couplers; and inputting the two paths of coupling signals into the two cascaded double-path couplers to obtain four output port signals output by the two cascaded double-path couplers, wherein any two output port signals in the four output port signals are mutually orthogonal. Through the coupling effect of the plurality of double-way couplers, four-port signals acquired by the outdoor four-way trunk can be converted into any two-output port signals which are all orthogonal, so that four-stream signals which are orthogonal to each other can be formed by any combination of indoor single-way feeder lines, and the indoor split performance is effectively improved.
As an alternative embodiment, two cascaded two-way couplers are deployed in a weak well bank accessing a flat floor within a room. By disposing two cascaded double-way couplers on the weak well wiring bars of the access indoor flat layer, the deployment cost can be effectively reduced.
As an alternative embodiment, for example, the first chamber division manner may be used to obtain the four-port signal when the second chamber division manner is used, for example, before the four-port signal obtained from the outdoor four-way trunk is combined to the plurality of single ways of the indoor flat layer to perform four-way coverage based on the target chamber division manner, the method further includes: the power divider is adopted to divide the power of four paths of signals transmitted on the outdoor four paths of trunks to obtain eight paths of signals; and coupling the signals separated from the power splitters in eight paths by adopting a two-way coupler to obtain four-port signals.
Correspondingly, before four-port signals acquired from the outdoor four-way trunk are combined to a plurality of single ways of indoor flat layers for four-stream coverage based on the target indoor division mode, the method further comprises: four-way signals transmitted on the outdoor four-way trunk are coupled through a two-way coupler to obtain four-port signals.
Based on the above embodiments and alternative embodiments, an alternative implementation is provided.
In order to solve the above-mentioned problems in the related art, in this optional embodiment, a low-cost fourth-order indoor subsystem is provided, where the overall idea of the low-cost fourth-order indoor subsystem is to use a two-way coupler to combine the 4-port signals into a single-way distribution system, so as to keep the single-way indoor subsystem in the original flat layer unchanged (each antenna of the single-way indoor subsystem in the original flat layer is independently connected from a weak current well cable), realize four-stream coverage, and improve the performance of the distribution system.
Scheme one:
a scheme I of a low-cost four-order room subsystem comprises a four-way trunk, a two-way coupling quadrature implementation and a bridge signal mixing (realizing any two output signal quadrature). Scheme one can be divided into two examples depending on where the source is installed.
Example one: the information source is arranged on the middle floor
Fig. 3 is a schematic diagram of an example one of a low-cost high-order MIMO indoor subsystem according to an alternative embodiment of the present invention, where, as shown in fig. 3, after the four-way trunk divides the 5G RRU four-port source by power, the output port one of the four-way splitter covers the upper floor (e.g., 5-8 floors), the output port two covers the lower floor (e.g., 1-4 floors), and the output ports are coupled to the flat-layer system by couplers, respectively. If the number of the flat layer antennas is more than 6, the coupled signals can be coupled or divided, the signal output is increased, and a double-path coupler is added in a subsequent double-path coupling circuit, so that more antenna ports can be output.
The two-way coupling quadrature implementation is realized, four-way signals coupled by the trunk are connected into the two-way coupler in pairs, the two-way coupler is coupled to output, and two-way output signals are orthogonal in pairs. The two-way coupling quadrature principle is as follows:
assuming that the signal at input port 1 of the two-way coupler is S1 and the signal at input port 2 is S2, the output signal at the coupling port is (taking 10dB coupler as an example):
0.1S1+0.1S2e -j(ωt+π/2) note that: e, e -j(ωt+π/2) The additional 90 ° phase shifted two-way coupler output 1 signal generated for the two-way coupler pair input 2 is:
0.85S1 (note: about 0.05S1 feed into outlet 2)
The output port 2 signal of the two-way coupler is:
0.9S2+0.05S1 e -j(ωt+π) (Note: the phase shift from input port 1 to output port 2 is about 180.)
The coefficient matrix rank of the signals S1 and S2 output by any two ports of the three ports is 2, so that the signals output by any two ports are orthogonal.
The output signals of the two-way couplers are mixed and then output through the bridge, and the two input ports of each bridge are respectively connected with the output ports (including the coupling ports) of different two-way couplers. The output port of the bridge comprises RRU four-port signals, and the four output ports of any two bridges are mutually orthogonal, and the orthogonal principle is as follows:
let the bridge one two input signals be a, b and the bridge two input signals be c, d.
The output signals of the two output ports of the bridge I are:
0.5a e -j(ωt+π/2) +0.5b e -j(ωt+π)
0.5a e -j(ωt+π) +0.5b e -j(ωt+π/2)
the output signals of two output ports of the bridge II are
0.5c e -j(ωt+π/2) +0.5d e -j(ωt+π)
0.5c e -j(ωt+π) +0.5d e -j(ωt+π/2)
From the four-equation a, b, c, d four-signal coefficient matrix analysis, the rank is 4, and the four signals comprise four-port signals of the information source, so that the four-output-port signals are orthogonal, and 4 x 4MIMO can be realized.
The output port of the bridge is connected with the distributed system antennas, and single cable four-stream coverage can be realized when the terminal receives 4 antenna signals in the same floor.
Example two: the source is installed on the lowest/highest floor
Figure 4 is a schematic diagram of an example two of a low cost high order MIMO indoor subsystem scheme according to an alternative embodiment of the present invention, as shown in figure 4, with four main trunks coupling the 5G RRU four port sources into the flat layer system with couplers, respectively. If the number of the flat layer antennas is more than 6, the coupled signals can be coupled or divided, the signal output is increased, and a double-path coupler is added in a subsequent double-path coupling circuit, so that more antenna ports can be output.
The two-way coupling quadrature implementation is realized, four-way signals coupled by the trunk are connected into the two-way coupler in pairs, the two-way coupler is coupled to output, and two-way output signals are orthogonal in pairs. The principle of two-way coupling quadrature is the same as in example one above.
The output signals of the two-way couplers are mixed and output through the bridge, and the input ports of each bridge are respectively connected with the output ports (including the coupling ports) of the different two-way couplers. The output ports of the bridge comprise RRU four-port signals, and the four output ports of any two bridges are mutually orthogonal, and the principle of orthogonality is the same as that of the first embodiment.
The output port of the bridge is connected with the distributed system antennas, and single cable four-stream coverage can be realized when the terminal receives 4 antenna signals in the same floor.
Scheme II:
a scheme II of a low-cost four-order indoor division system comprises a four-way trunk (the trunk synthesizes signals into two paths to be sent to a flat layer through two-way coupling) and two-way coupling is achieved in quadrature. Scheme II can be divided into two examples according to where the source is installed.
Example one: the information source is arranged on the middle floor
Fig. 5 is a schematic diagram of an example one of a scheme of a low-cost high-order MIMO indoor division system according to an alternative embodiment of the present invention, as shown in fig. 5, after a four-channel main trunk divides a 5G RRU four-port signal source by power, an output one of the four-channel power divider covers an upper floor (e.g. 6-10 floors), an output two covers a lower floor (e.g. 1-5 floors), and two-channel signals (including a signal source four-port signal) are respectively coupled by a two-channel coupler and input into a flat layer system.
And the two-way coupling quadrature is realized, two-way signals of the trunk coupling are connected into a two-way coupler, the two-way coupler is connected with the indoor antenna in a cascading mode, and the two-way coupler is coupled to output and two-way output signals are in quadrature. The principle of two-way coupling and orthogonality is described in scheme one.
Four-flow implementation is carried out, two input signals of a 5-floor flat layer double-way coupler are assumed to be m, n, and two input signals of a 4-floor double-way coupler are assumed to be g and h.
The output signals of the coupling ports of two adjacent two-way couplers of the 5 th floor are (for simplicity calculation, the coupled signals are assumed to be 1/10 of the input signals):
0.1m e -j(ωt+π/2) +0.1n e -j(ωt+π)
0.1m e -j(ωt+π) +0.1f n e -j(ωt+3π/2) +0.05m e -j(ωt+2π)
the output signals of the coupling ports of two adjacent two-way couplers of the 4 floors are (for simplicity of calculation, the coupled signals are assumed to be 1/10 of the input signals)
0.1g e -j(ωt+π/2) +0.1he -j(ωt+π)
0.1ge -j(ωt+π) +0.1he -j(ωt+3π/2) +0.05g e -j(ωt+2π)
From the four-equation m, n, g, h four-signal coefficient matrix analysis, the rank is 4, and the four signals comprise four-port signals of the information source, so that the four-output-port signals are orthogonal, and 4 x 4MIMO can be realized.
When the terminal in the 5 th floor receives the signals of the adjacent 4 antennas of the 5 th floor and the 4 th floor, the single cable four-stream coverage can be realized.
Example two: the sources being disposed at the highest/lowest floors
Fig. 6 is a schematic diagram of a second example of a low cost high order MIMO indoor division system scheme according to an alternative embodiment of the present invention, where, as shown in fig. 6, a four-way backbone is coupled into two-way signals (including source four-port signals) by using a two-way coupler, and the two-way signals are input into a flat layer system.
And the two-way coupling quadrature is realized, two-way signals of the trunk coupling are connected into a two-way coupler, the two-way coupler is connected with the indoor antenna in a cascading mode, and the two-way coupler is coupled to output and two-way output signals are in quadrature. The principle of two-way coupling and orthogonality is described in scheme one.
Four-stream implementation, the principle is described in scheme two examples one.
By the above alternative embodiments, the following effects can be achieved:
for the related art, four-flow performance can be realized by using a single-way chamber, and high performance can be realized with lower manufacturing cost.
And meanwhile, the signal level balance of each path in the 4 x 4MIMO is realized.
The method not only can utilize adjacent floor signals to realize MIMO, but also can utilize the same floor signals to realize MIMO, thereby improving the flexibility of network deployment and being applicable to most scenes.
In an embodiment of the present invention, there is also provided a fourth-order chamber component system, including: the system comprises a signal source, an outdoor trunk, an indoor flat layer, a two-way coupler and/or a bridge, wherein a four-stage indoor subsystem is used for determining a target indoor subsystem from the outdoor four-way trunk to the indoor flat layer and combining four-port signals acquired from the outdoor four-way trunk into a plurality of single ways of the indoor flat layer to carry out four-way coverage based on the target indoor subsystem, wherein the target indoor subsystem comprises a first indoor subsystem and a second indoor subsystem, the first indoor subsystem comprises a two-way coupler and bridge combination mode, and the second indoor subsystem comprises a two-way coupler mode.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (10)

1. A fourth order compartmentalization method, comprising:
determining a target room division mode from an outdoor four-way trunk to an indoor flat layer, wherein the target room division mode comprises a first room division mode and a second room division mode, the first room division mode comprises a double-way coupler and bridge combination mode, and the second room division mode comprises a double-way coupler mode;
and based on the target room division mode, combining four-port signals acquired from the outdoor four-way trunk into a plurality of single ways of indoor flat layers to perform four-stream coverage.
2. The method according to claim 1, wherein, in the case that the target room division manner is the first room division manner, the four-way signal acquired from the outdoor four-way trunk is combined into a plurality of single ways of indoor flat layers for four-way coverage based on the target room division manner, including:
inputting the four-port signals into two double-way couplers respectively to obtain three-port signals of the two double-way couplers respectively, wherein any two port signals in the three-port signals are orthogonal, and the three-port signals comprise coupling port output signals, a double-way coupler output port I and a double-way coupler output port II;
and mixing the three-port signals of the two double-path couplers with the two double-input three-bridge respectively to obtain two output port signals respectively output by the three-bridge, wherein the four output port signals of any two of the three-bridge are mutually orthogonal.
3. The method of claim 2, wherein the two-way couplers and the three-bridge are deployed in a weak well wiring bank that accesses the indoor floor.
4. The method of claim 2, further comprising, prior to combining four port signals acquired from the outdoor four-way backbone into a plurality of single ways of indoor flat layers for four-stream coverage based on the target indoor split approach:
a power divider is adopted to divide the power of four paths of signals transmitted on the outdoor four paths of trunks, so as to obtain eight paths of signals;
and coupling signals separated from different power splitters in the eight paths of signals by adopting couplers two by two to obtain the four-port signal.
5. The method of any one of claims 2 to 4, further comprising, prior to four-stream coverage of the plurality of single lanes of four-port signals acquired from the outdoor four-way backbone to an indoor flat layer based on the target indoor split approach:
and coupling four paths of signals transmitted on the outdoor four paths of trunks through couplers to obtain the four-port signals.
6. The method according to claim 1, wherein, in the case that the target room division manner is the second room division manner, the four-way signal acquired from the outdoor four-way trunk is combined into a plurality of single ways of indoor flat layers for four-way coverage based on the target room division manner, including:
inputting the four-port signals into two double-way couplers respectively to obtain two-way coupling signals output by the two-way couplers;
and inputting the two paths of coupling signals into two cascaded double-way couplers to obtain four output port signals output by the two cascaded double-way couplers, wherein any two output port signals in the four output port signals are mutually orthogonal.
7. The method of claim 6, wherein the two cascaded two-way couplers are deployed in a weak well bank accessing the indoor floor.
8. The method of claim 6, further comprising, prior to combining four port signals acquired from the outdoor four-way backbone into a plurality of single ways of indoor flat layer for four-stream coverage based on the target indoor split approach:
a power divider is adopted to divide the power of four paths of signals transmitted on the outdoor four paths of trunks, so as to obtain eight paths of signals;
and coupling signals separated from different power splitters in the eight paths of signals by adopting a two-path coupler to obtain the four-port signal.
9. The method according to any one of claims 6 to 8, further comprising, before four-stream coverage of a plurality of single channels of four-port signals acquired from the outdoor four-channel backbone into an indoor flat layer based on the target indoor division scheme:
and coupling four paths of signals transmitted on the outdoor four paths of trunks through a two-path coupler to obtain the four-port signals.
10. A fourth order chamber separation system, comprising: signal sources, outdoor trunks, indoor floors, two-way couplers and/or bridges, wherein,
the four-stage room subsystem is used for determining a target room division mode from an outdoor four-way trunk to an indoor flat layer and carrying out four-flow coverage on a plurality of single ways from four-port signals acquired from the outdoor four-way trunk to the indoor flat layer based on the target room division mode, wherein the target room division mode comprises a first room division mode and a second room division mode, the first room division mode comprises a two-way coupler and a bridge combination mode, and the second room division mode comprises a two-way coupler mode.
CN202211733420.1A 2022-12-30 2022-12-30 Fourth-order room division method and system Pending CN116261231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211733420.1A CN116261231A (en) 2022-12-30 2022-12-30 Fourth-order room division method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211733420.1A CN116261231A (en) 2022-12-30 2022-12-30 Fourth-order room division method and system

Publications (1)

Publication Number Publication Date
CN116261231A true CN116261231A (en) 2023-06-13

Family

ID=86680171

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211733420.1A Pending CN116261231A (en) 2022-12-30 2022-12-30 Fourth-order room division method and system

Country Status (1)

Country Link
CN (1) CN116261231A (en)

Similar Documents

Publication Publication Date Title
CN106817288B (en) A kind of data centre network system and signal transmission system
CN101042862B (en) Audio network system
JPH02502061A (en) broadband local area network
JPH027742A (en) Communication system
US9800959B2 (en) Optical switching apparatus
KR100697488B1 (en) Method and apparatus for data communication
CA1318383C (en) Broadcast network
US4456987A (en) Digital switching network
US10587506B2 (en) Video router
US4760395A (en) Arrangement for communications between equipment belonging to different network architectures
CN116261231A (en) Fourth-order room division method and system
US20040044822A1 (en) Computer I/O switching means based on network links
CN105704421B (en) A kind of main sub-venue group network system of video conference and method
EP2590472B1 (en) WiFi apparatus for wireless internet and wireless internet system using the same
JPH0683245B2 (en) Efficient single-hop directional multi-channel system
JP2019047160A (en) Mpp network, construction method of mpp network, design device and design metho of mpp network
CN114171875B (en) Combiner and indoor branch system
KR101060582B1 (en) Repeater system and control method thereof
JP3996578B2 (en) Method and system for transmitting a carrier signal between first and second antenna networks
CN114679693B (en) Coupling device and chamber division system
CN217721189U (en) Signal output device
CN108832956A (en) A kind of signal receiving/transmission device and antenna equipment
US7190973B1 (en) Method for reconfiguring base station equipment to relieve blocking in a heavily utilized cell sector
CN109348539B (en) Network connection system and method for Backhaul device
CN111277305A (en) MIMO leaky cable system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination