CN116801265A - Indoor distribution system and topology acquisition method thereof - Google Patents
Indoor distribution system and topology acquisition method thereof Download PDFInfo
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- CN116801265A CN116801265A CN202310840107.6A CN202310840107A CN116801265A CN 116801265 A CN116801265 A CN 116801265A CN 202310840107 A CN202310840107 A CN 202310840107A CN 116801265 A CN116801265 A CN 116801265A
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- 230000003287 optical effect Effects 0.000 claims abstract description 67
- 239000013307 optical fiber Substances 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 11
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
- H04W16/20—Network planning tools for indoor coverage or short range network deployment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/246—Connectivity information discovery
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Abstract
The invention discloses an indoor distribution system and a topology acquisition method thereof. The system comprises a topology acquisition step from the near-end unit to the expansion unit and a topology acquisition step from the expansion unit to the far-end unit; the topology acquisition step between the near-end unit and the expansion unit comprises the following steps: the near-end unit binds the corresponding relation between the physical position of the optical port and the expansion unit by controlling the built-in optical fiber receiving channel and the FSK signal so as to number the expansion unit; the topology acquisition step between the extension unit and the remote unit comprises the following steps: the full-automatic acquisition of the network topology between the extension unit and the remote unit is realized by controlling the on-off of the radio frequency switch on the FSK path of the extension unit, the combiner and the meta unit. According to the invention, information can be automatically acquired according to the increase and decrease of equipment, full-automatic topology discovery is realized, constructors do not need to intervene, the difficulty of station opening is reduced, all the equipment can be directly replaced, secondary setting and processing are not needed, and different site construction scenes are maximally realized.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an indoor distribution system and a topology acquiring method thereof.
Background
In order to adapt to the service requirements of different scenes, the service value is low in some places, so that the base station cannot provide enough signal coverage. In such a scenario, the coverage area of a base station may be enhanced by using an indoor distribution system.
The existing indoor distribution system is divided into: active distribution system, passive distribution system. The active distribution system consists of a near-end unit, an expansion unit and a covering unit, wherein the near-end unit and the expansion unit are connected through an analog optical fiber, an analog optical signal is transmitted in the middle, the expansion unit and the far-end unit are transmitted in the middle through a radio frequency cable, and the analog signal is transmitted in the middle. In order to ensure that each device is convenient for asset management, location information searching and link disconnection communication abnormality searching, the system needs to know topology information of each device, ensure that a client knows key information of each device and whether the device is normally connected with the whole system. In the prior art, topology information can be input in a manual mode, and the form can be a mobile phone APP or a dial switch, but both the topology information and the coding rule need construction personnel to know the network topology and the coding rule of construction wiring.
Disclosure of Invention
The invention aims to provide an indoor distribution system and a topology acquisition method thereof, which are used for overcoming the defects existing in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the indoor distribution system consists of a near-end unit, an expansion unit, a combiner and a far-end unit which are sequentially connected, wherein the near-end unit is used for converting a base station signal into an optical signal after amplification, filtering and splitting and combining, transmitting the optical signal to the expansion unit, the expansion unit is used for converting the optical signal of the near-end into a radio frequency signal, amplifying, filtering and splitting and combining the radio frequency signal, transmitting the radio frequency signal to the combiner, the combiner is used for splitting and combining the radio frequency signal and detecting a monitoring signal, and the far-end unit is used for amplifying, filtering and splitting and combining the radio frequency signal of the expansion unit and transmitting the signal through a coverage antenna.
Further, the near-end unit comprises a first FSK dividing and path module, a first FSK integrating module and a first optical module, wherein the first FSK dividing and path module is connected with the first FSK integrating module, a first radio frequency switch is arranged on a path of the first FSK dividing and path module and the first optical module, the first FSK integrating module is further connected with the first radio frequency switch, the expansion unit comprises a second optical module and a second FSK integrating module, the first optical module is connected with the second optical module, and the second FSK integrating module is connected with the second optical module.
Further, the expansion unit comprises a second FSK dividing and routing module, a third FSK integrating module and a first radio frequency port, wherein the second FSK dividing and routing module is connected with the third FSK integrating module, a second radio frequency switch is arranged on a passage between the second FSK dividing and routing module and the radio frequency port, and the third FSK integrating module is also connected with the second radio frequency switch; the combining module unit comprises a splitting and combining module, a fourth FSK integrated module and a second radio frequency port; the switching-on/switching-off module and the fourth FSK integrated module are connected with the first radio frequency port, a third radio frequency switch is arranged on a path of the switching-on/switching-off module connected with the second radio frequency port, and the fourth FSK integrated module is also connected with the third radio frequency switch; the remote unit comprises a third radio frequency port and a fifth FSK integrated module which are sequentially connected, and the third radio frequency port is connected with the second radio frequency port.
The topology acquisition method of the indoor distribution system comprises a topology acquisition step from a near-end unit to an expansion unit and a topology acquisition step from the expansion unit to a far-end unit; the topology acquisition step between the near-end unit and the expansion unit comprises the following steps: the near-end unit binds the corresponding relation between the physical position of the optical port and the expansion unit by controlling the built-in optical fiber receiving channel and the FSK signal so as to number the expansion unit; the topology acquisition step between the extension unit and the remote unit comprises the following steps: the full-automatic acquisition of the network topology between the extension unit and the remote unit is realized by controlling the on-off of the radio frequency switch on the FSK path of the extension unit, the combiner and the meta unit.
Further, the topology acquisition step between the near-end unit and the expansion unit includes:
s10, a monitoring module of the near-end unit numbers the FSK link radio frequency switch of each optical port, and selects bits according to the number of the optical ports;
s20, the near-end unit transmits all the using information to the expansion unit through FSK broadcasting;
s30, an optical module unit of the near-end unit only opens an FSK link radio frequency switch of the OP1, and an FSK radio frequency line of the OP2-OP4 is closed in a radio frequency manner;
s40, numbering the site number of the extension unit for communication at the moment as 001;
s50, repeating the steps S10-S50, and binding the expansion units 1-4 corresponding to the optical ports OP1-OP4 of the optical module units;
s60, the near-end unit is connected with FSK link radio frequency switches of OP1-OP4, and a communication mechanism is established with all the hung extension units;
and S70, drawing a network topological relation diagram.
Further, in the step S1, the physical location of the optical port is identified using 3 bits, where 001 represents optical port 1, 010 represents optical port 2, 011 represents optical port 3, and 100 represents optical port 4.
Further, the topology acquisition step between the extension unit and the remote unit includes:
s11, a monitoring module of the expansion unit numbers the FSK link radio frequency switch of each radio frequency port, and selects bits according to the number of radio frequencies;
s21, using a setting bit to identify the branch number of the combiner;
s31, the remote unit uses the setting bit to represent the remote unit number of a certain branch of a certain combiner;
s41, the expansion unit transmits all the use information to the remote unit through FSK broadcast information;
s51, the expansion unit and the combiner sequentially open the FSK link radio frequency switch according to the coding mode;
s61, numbering the remote units communicating at the moment;
s71, repeating the steps S11-S61, and numbering all the remote units;
s81, the expansion unit is connected with all FSK link radio frequency switches, and a communication mechanism is established with all the hung remote units;
s91, drawing a network topological relation.
Further, in the step S11, the physical position of the optical port is identified by using 3 bits, where 001 represents the rf port 1, 010 represents the rf port 2, 011 represents the rf port 3, 100 represents the rf port 4, and each rf port number is the number of the combiner.
Further, in the step S21, the branch number of the combiner is identified by using 2 bits.
Further, in the step S31, a 3-bit number is used to indicate a remote unit number of a certain branch of a certain combiner, where 000 indicates an invalid value.
Compared with the prior art, the invention has the advantages that: according to the indoor distribution system and the topology acquisition method thereof, information can be automatically acquired according to the increase and decrease equipment, full-automatic topology discovery is achieved, constructors do not need to intervene, the difficulty of starting a station is reduced, all the equipment can be directly replaced, secondary setting and processing are not needed, different site construction scenes are maximally achieved, FSK modulation signals can be in various forms and can be ASK signals, QPSK signals, bluetooth signals or modulation signals in other forms, the application is wide, if a certain equipment is broken, a specific branch can be found through the topology, and the application is more convenient.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a networking of the present invention.
Fig. 2 is a schematic block diagram of the communication between the near end unit to the expansion unit of the present invention.
Fig. 3 is a schematic block diagram of the communication between the expansion unit to the remote unit of the present invention.
Fig. 4 is a topological block diagram drawn in the present invention.
Description of the embodiments
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Referring to fig. 1, the indoor distribution system of the present invention is composed of a near-end unit, an expansion unit, a combiner and a far-end unit, wherein the near-end unit is used for amplifying, filtering and splitting and combining base station signals, converting the base station signals into optical signals and transmitting the optical signals to the expansion unit; the expansion unit is used for converting the near-end optical signal into a radio frequency signal, amplifying, filtering and splitting and combining the radio frequency signal, and transmitting the radio frequency signal to the combiner; the combiner has the functions of splitting and combining, and detecting a monitoring signal; the remote unit is used for amplifying, filtering and splitting and combining the radio frequency signals of the extension unit and transmitting the signals through the coverage antenna.
Fig. 2 is a schematic block diagram of communication between a near-end unit to an expansion unit. The near-end unit comprises a first FSK dividing and routing module, a first FSK integrating module and a first optical module, wherein the first FSK dividing and routing module is connected with the first FSK integrating module, a radio frequency switch is arranged on a path of the first FSK dividing and routing module and the first optical module, the first FSK integrating module is further connected with the radio frequency switch, the expansion unit comprises a second optical module and a second FSK integrating module, the first optical module is connected with the second optical module, and the second FSK integrating module is connected with the second optical module.
The first FSK splitting and combining module is used for filtering and splitting and combining the coupled FSK signals and transmitting the signals to the first FSK integration module and the second FSK integration module; the first FSK integrated module and the second FSK integrated module are used for processing FSK modulation signals, converting the FSK modulation signals into digital signals, and then sending the digital signals into an MCU for logic and monitoring instruction processing; the first and second optical modules are used for mutually converting radio frequency signals and optical signals.
Fig. 3 is a schematic block diagram of communication between an expansion unit to a remote unit. The expansion unit comprises a second FSK dividing and routing module, a third FSK integrating module and a first radio frequency port, wherein the second FSK dividing and routing module is connected with the third FSK integrating module, a second radio frequency switch is arranged on a passage between the second FSK dividing and routing module and the radio frequency port, and the third FSK integrating module is also connected with the second radio frequency switch; the combining module unit comprises a splitting and combining module, a fourth FSK integrated module and a second radio frequency port; the switching-on/switching-off module and the fourth FSK integrated module are connected with the first radio frequency port, a third radio frequency switch is arranged on a path of the switching-on/switching-off module connected with the second radio frequency port, and the fourth FSK integrated module is also connected with the third radio frequency switch; the remote unit comprises a third radio frequency port and a fifth FSK integrated module which are sequentially connected, and the third radio frequency port is connected with the second radio frequency port.
The second FSK splitting and combining module is used for filtering and splitting and combining the coupled FSK signals and transmitting the signals to the FSK integration module; the FSK integrated module is used for processing the FSK modulation signal, converting the FSK modulation signal into a digital signal, and then sending the digital signal into the MCU for logic and monitoring instruction processing; the radio frequency port is used as an interface for transmitting radio frequency signals; the splitting and combining module is used for performing power splitting or combining on the radio frequency signals.
On the basis, the embodiment discloses a topology acquisition method, which comprises a topology acquisition step from a near-end unit to an expansion unit and a topology acquisition step from the expansion unit to a far-end unit; the topology acquisition step between the near-end unit and the expansion unit comprises the following steps: the near-end unit binds the corresponding relation between the physical position of the optical port and the expansion unit by controlling the built-in optical fiber receiving channel and the FSK signal so as to number the expansion unit; the topology acquisition step between the extension unit and the remote unit comprises the following steps: the full-automatic acquisition of the network topology between the extension unit and the remote unit is realized by controlling the on-off of the radio frequency switch on the FSK path of the extension unit, the combiner and the meta unit.
In this embodiment, the topology acquiring step between the near-end unit and the extension unit includes:
step S10, a monitoring module of the near-end unit numbers the FSK link radio frequency switch of each optical port, and selects bits according to the number of the optical ports; the present embodiment uses 3 bits to identify the physical location of the optical port (i.e., 001 for optical port 1, 010 for optical port 2, 011 for optical port 3, and 100 for optical port 4).
Step S20, the near-end unit transmits all the usage broadcast information to the expansion unit through the FSK.
And step S30, the optical module unit of the near-end unit only opens the FSK link radio frequency switch of the OP1, and the FSK radio frequency circuits of the OP2-OP4 are closed in radio frequency.
Step S40, the site number of the extension unit communicating at the moment is 001.
And step S50, repeating the steps S10-S50, and binding the extension units 1-4 corresponding to the optical ports OP1-OP4 of the optical module units.
And step S60, the near-end unit turns on the FSK link radio frequency switch of the OP1-OP4 and establishes a communication mechanism with all the underhung expansion units.
Step S70, drawing a network topological relation diagram, as shown in FIG. 4.
In this embodiment, the topology acquiring step between the extension unit and the remote unit includes:
step S11, a monitoring module of the expansion unit numbers the FSK link radio frequency switch of each radio frequency port, and selects bits according to the number of radio frequencies, wherein 3 bits (Bit 6-8) are used for identifying the physical position of the optical port in the embodiment, wherein 001 represents radio frequency port 1, 010 represents radio frequency port 2, 011 represents radio frequency port 3, 100 represents radio frequency port 4, and each radio frequency port number is the number of the combiner, and the maximum number represents 8 radio frequency ports.
And S21, identifying the branch number of the combiner by using 2 bits (bit 4-5), and identifying at most 4 branches.
In step S31, the remote units use 3-Bit numbers (Bit 1-3) to represent the remote unit numbers of a certain branch of a certain combiner, and at most represent 7 remote units, wherein 000 represents an invalid value.
Step S41, the expansion unit transmits all the use broadcast information to the remote unit through FSK;
step S51, an expansion unit and a combiner sequentially open an FSK link radio frequency switch according to a coding mode;
step S61, numbering the remote units communicating at the moment;
step S71, repeating the steps S11-S61, and numbering all the remote units;
step S81, the expansion unit is connected with all FSK link radio frequency switches, and a communication mechanism is established with all the hung remote units;
step S91, drawing a network topology relationship, as shown in fig. 4.
Fig. 4 is a block diagram of a topology drawn comprising a near-end unit AU, an extension unit EU and a far-end unit RU, wherein the combiner is distinguished by the color of the far-end. In addition the device is shown in place by a green light, the non-in place being indicated in grey or red.
According to the topology acquisition method, the information can be automatically acquired according to the increase and decrease equipment, full-automatic topology discovery is realized, constructors do not need to intervene, and the difficulty of starting a station is reduced.
All the equipment in the invention can be directly replaced without secondary setting and processing, and different site construction scenes are realized to the maximum extent.
The FSK modulation signal in the invention can be in various forms, such as ASK signal, QPSK signal, bluetooth signal or other forms of modulation signals, and has wide application.
The broken link abnormality of a certain device in the invention can find out the specific branch through topology, which is more convenient.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, the patentees may make various modifications or alterations within the scope of the appended claims, and are intended to be within the scope of the invention as described in the claims.
Claims (10)
1. The indoor distribution system is characterized by comprising a near-end unit, an expansion unit, a combiner and a far-end unit which are sequentially connected, wherein the near-end unit is used for converting a base station signal into an optical signal after amplification, filtering and splitting and combining, the optical signal is transmitted to the expansion unit, the expansion unit is used for converting the near-end optical signal into a radio frequency signal, amplifying, filtering and splitting and combining the radio frequency signal and transmitting the radio frequency signal to the combiner, the combiner is used for splitting and combining and detecting a monitoring signal, and the far-end unit is used for amplifying, filtering and splitting and combining the radio frequency signal of the expansion unit and transmitting the signal through a coverage antenna.
2. The indoor distribution system according to claim 1, wherein the near-end unit comprises a first FSK dividing and routing module, a first FSK integrating module and a first optical module, the first FSK dividing and routing module is connected with the first FSK integrating module, a first radio frequency switch is arranged on a path of the first FSK dividing and routing module and the first optical module, the first FSK integrating module is further connected with the first radio frequency switch, the expansion unit comprises a second optical module and a second FSK integrating module, the first optical module is connected with the second optical module, and the second FSK integrating module is connected with the second optical module.
3. The indoor distribution system according to claim 1, wherein the expansion unit comprises a second FSK dividing and routing module, a third FSK integrating module and a first rf port, the second FSK dividing and routing module is connected with the third FSK integrating module, a second rf switch is arranged on a path between the second FSK dividing and routing module and the rf port, and the third FSK integrating module is further connected with the second rf switch; the combining module unit comprises a splitting and combining module, a fourth FSK integrated module and a second radio frequency port; the switching-on/switching-off module and the fourth FSK integrated module are connected with the first radio frequency port, a third radio frequency switch is arranged on a path of the switching-on/switching-off module connected with the second radio frequency port, and the fourth FSK integrated module is also connected with the third radio frequency switch; the remote unit comprises a third radio frequency port and a fifth FSK integrated module which are sequentially connected, and the third radio frequency port is connected with the second radio frequency port.
4. A topology acquisition method of an indoor distribution system according to any one of claims 1 to 3, comprising a topology acquisition step between a near-end unit to an expansion unit and a topology acquisition step between an expansion unit to a far-end unit; the topology acquisition step between the near-end unit and the expansion unit comprises the following steps: the near-end unit binds the corresponding relation between the physical position of the optical port and the expansion unit by controlling the built-in optical fiber receiving channel and the FSK signal so as to number the expansion unit; the topology acquisition step between the extension unit and the remote unit comprises the following steps: the full-automatic acquisition of the network topology between the extension unit and the remote unit is realized by controlling the on-off of the radio frequency switch on the FSK path of the extension unit, the combiner and the meta unit.
5. The topology acquisition method of claim 1, wherein the topology acquisition step between the near-end unit to the expansion unit comprises:
s10, a monitoring module of the near-end unit numbers the FSK link radio frequency switch of each optical port, and selects bits according to the number of the optical ports;
s20, the near-end unit transmits all the using information to the expansion unit through FSK broadcasting;
s30, an optical module unit of the near-end unit only opens an FSK link radio frequency switch of the OP1, and an FSK radio frequency line of the OP2-OP4 is closed in a radio frequency manner;
s40, numbering the site number of the extension unit for communication at the moment as 001;
s50, repeating the steps S10-S50, and binding the expansion units 1-4 corresponding to the optical ports OP1-OP4 of the optical module units;
s60, the near-end unit is connected with FSK link radio frequency switches of OP1-OP4, and a communication mechanism is established with all the hung extension units;
and S70, drawing a network topological relation diagram.
6. The topology acquisition method of claim 5, wherein 3 bits are used in the step S1 to identify the physical location of the optical port, wherein 001 represents optical port 1, 010 represents optical port 2, 011 represents optical port 3, 100 represents optical port 4.
7. The topology acquisition method of claim 5, wherein the topology acquisition step between the extension unit to the remote unit comprises:
s11, a monitoring module of the expansion unit numbers the FSK link radio frequency switch of each radio frequency port, and selects bits according to the number of radio frequencies;
s21, using a setting bit to identify the branch number of the combiner;
s31, the remote unit uses the setting bit to represent the remote unit number of a certain branch of a certain combiner;
s41, the expansion unit transmits all the use information to the remote unit through FSK broadcast information;
s51, the expansion unit and the combiner sequentially open the FSK link radio frequency switch according to the coding mode;
s61, numbering the remote units communicating at the moment;
s71, repeating the steps S11-S61, and numbering all the remote units;
s81, the expansion unit is connected with all FSK link radio frequency switches, and a communication mechanism is established with all the hung remote units;
s91, drawing a network topological relation.
8. The topology acquisition method of claim 7, wherein in step S11, the physical location of the optical port is identified using 3 bits, wherein 001 represents rf port 1, 010 represents rf port 2, 011 represents rf port 3, 100 represents rf port 4, and each rf port number is the number of the combiner.
9. The topology acquisition method of claim 7, wherein the step S21 uses 2 bits to identify the tributary numbers of the combiner.
10. The topology acquisition method of claim 7, wherein the step S31 uses 3 bits to represent a remote unit number of a certain branch of a certain combiner, wherein 000 represents an invalid value.
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| CN202310840107.6A CN116801265A (en) | 2023-07-10 | 2023-07-10 | Indoor distribution system and topology acquisition method thereof |
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| CN202310840107.6A CN116801265A (en) | 2023-07-10 | 2023-07-10 | Indoor distribution system and topology acquisition method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117439635A (en) * | 2023-12-20 | 2024-01-23 | 广州市瀚云信息技术有限公司 | Master-slave communication device of active distribution system and implementation method |
| CN117939485A (en) * | 2024-02-22 | 2024-04-26 | 广州市瀚云信息技术有限公司 | Method for realizing carrier splitting of 5G indoor distribution system |
-
2023
- 2023-07-10 CN CN202310840107.6A patent/CN116801265A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117439635A (en) * | 2023-12-20 | 2024-01-23 | 广州市瀚云信息技术有限公司 | Master-slave communication device of active distribution system and implementation method |
| CN117439635B (en) * | 2023-12-20 | 2024-02-23 | 广州市瀚云信息技术有限公司 | Master-slave communication device of active distribution system and implementation method |
| CN117939485A (en) * | 2024-02-22 | 2024-04-26 | 广州市瀚云信息技术有限公司 | Method for realizing carrier splitting of 5G indoor distribution system |
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