CN111010680B - Indoor distribution system - Google Patents
Indoor distribution system Download PDFInfo
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- CN111010680B CN111010680B CN201911338220.4A CN201911338220A CN111010680B CN 111010680 B CN111010680 B CN 111010680B CN 201911338220 A CN201911338220 A CN 201911338220A CN 111010680 B CN111010680 B CN 111010680B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
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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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Abstract
The invention discloses an indoor distribution system, which comprises: the system comprises an access unit, an expansion unit and a remote unit; the remote unit supports a first frequency band and a second frequency band; the first frequency band is a frequency band corresponding to the access unit being a radio frequency access unit, and the second frequency band is a frequency band corresponding to the access unit being a baseband access unit. The technical scheme is used for realizing that when the requirement of a client changes, an indoor distribution system does not need to be built again.
Description
Technical Field
The embodiment of the invention relates to the field of communication, in particular to an indoor distribution system.
Background
When the indoor distribution system is built, different indoor coverage schemes are selected according to different customer requirements, such as capacity scenes, construction convenience and equipment cost, in the prior art, but as the customer requirements may change along with time, if the customer requirements rise from low capacity requirements to high capacity requirements, the indoor distribution system needs to be built again, and a large engineering quantity is caused.
Disclosure of Invention
The embodiment of the invention provides an indoor distribution system, which is used for realizing that the indoor distribution system does not need to be built again when the requirements of customers change.
An indoor distribution system provided by an embodiment of the present invention includes:
the system comprises an access unit, an expansion unit and a remote unit;
the extension unit supports a first frequency band and a second frequency band, and the remote unit supports the first frequency band and the second frequency band; the first frequency band is a frequency band corresponding to the access unit being a radio frequency access unit, and the second frequency band is a frequency band corresponding to the access unit being a baseband access unit.
Optionally, the radio frequency access unit is connected to the base station through a coupler; the radio frequency access unit is used for converting a first radio frequency signal input by the base station into a first optical signal and further transmitting the first optical signal to the extension unit.
Optionally, the radio frequency access unit includes a wired radio frequency access unit and a wireless radio frequency access unit; the first frequency band comprises a third frequency band and a fourth frequency band; the third frequency band is a frequency band corresponding to the radio frequency access unit which is a wired radio frequency access unit; and the fourth frequency band is a frequency band corresponding to the radio frequency access unit which is a wireless radio frequency access unit.
Optionally, the wired radio frequency access unit is connected to the base station through a wired coupler; the wireless radio frequency access unit is connected with the base station through a wireless coupler.
Optionally, the radio frequency access unit includes a first radio frequency processing module, a first digital processing module, and a first optical module;
the first radio frequency processing module is used for performing first processing on the first radio frequency signal to generate a first digital signal and transmitting the first digital signal to the first digital processing module; the first processing comprises radio frequency amplification, filtering, and converting a radio frequency signal into a digital signal;
the first digital processing module is used for performing second processing on the first digital signal to generate a second digital signal and transmitting the second digital signal to the first optical module; the second processing comprises framing or de-framing, sample rate conversion, filtering and routing conversion;
the first optical module is used for converting the second digital signal into the first optical signal.
Optionally, the baseband access unit is connected to a core network through a gateway; the baseband access unit is configured to convert the first electrical signal of the core network into a second optical signal, and further transmit the second optical signal to the extension unit.
Optionally, the baseband access unit includes an LTE module, a 3G module, a 2G module, a main control module, and a second optical module;
the LTE module is used for transmitting the first electric signal of the LTE system to the main control module; transmitting the first electric signal of the 3G system to the main control module through the 3G module; transmitting the first electric signal of the 2G standard to the main control module through the 3G module and the 2G module;
the main control module is used for demodulating and sampling rate converting the first electric signal;
and the second optical module is used for converting the first electric signal demodulated and subjected to sampling rate conversion by the main control module into the second optical signal.
Optionally, the extension unit includes a third optical module, a second digital processing module, a fourth optical module, and a remote power supply module;
the third optical module is used for converting a third optical signal input by the access unit into a second electrical signal and transmitting the second electrical signal to the second digital processing module;
the second digital processing module is configured to perform third processing on the second electrical signal to generate a third electrical signal, and transmit the third electrical signal to the fourth optical module; the third processing comprises framing or unframing and routing;
the fourth optical module is used for converting the third electrical signal into a fourth optical signal and transmitting the fourth optical signal to the remote unit;
the remote power supply module is used for supplying power to the remote unit.
Optionally, the remote unit includes a fifth optical module, a third digital processing module, a second radio frequency processing module, and an antenna module;
the fifth optical module is used for converting the fourth optical signal into a fourth electrical signal;
the third digital processing module is used for performing fourth processing on the fourth electric signal to generate a second radio frequency signal and transmitting the second radio frequency signal to the second radio frequency processing module; the fourth processing comprises framing or unframing, filtering, sampling rate conversion and conversion of digital signals into radio frequency signals;
the second radio frequency processing module is used for performing fifth processing on the second radio frequency signal to generate a third radio frequency signal and transmitting the third radio frequency signal to the antenna module; the fifth processing comprises radio frequency signal amplification, filtering, shunting or combining;
the antenna module is used for transmitting the third radio frequency signal.
Optionally, the access unit is connected to a plurality of extension units; each expansion unit connects a plurality of remote units.
In the technical scheme, the extension unit and the remote unit in the indoor distribution system can both support the signal of the first frequency band and the signal of the second frequency band, namely, the extension unit and the remote unit can both support the signal transmitted by the radio frequency access unit and the baseband access unit.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a first indoor distribution system provided by an embodiment of the present invention;
FIG. 2 is a second indoor distribution system provided by an embodiment of the present invention;
FIG. 3 is a third indoor distribution system provided by an embodiment of the present invention;
fig. 4 is a radio access unit according to an embodiment of the present invention;
fig. 5 is a fourth indoor distribution system provided by an embodiment of the present invention;
FIG. 6 is a fifth indoor distribution system provided by an embodiment of the present invention;
fig. 7 is a baseband access unit according to an embodiment of the present invention;
fig. 8 is a sixth indoor distribution system provided by an embodiment of the present invention;
FIG. 9 is a seventh indoor distribution system provided by an embodiment of the present invention;
FIG. 10 is an expansion unit provided in accordance with an embodiment of the present invention;
fig. 11 is a remote unit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 exemplarily shows that an embodiment of the present invention provides an indoor distribution system, which may include an Access Unit (AU) 100, an Extended Unit (EU) 200, and a Remote Unit (RU) 300. Access unit 100 may transmit signals to extension unit 200, extension unit 200 may transmit signals to remote unit 300, or access unit 100 may transmit signals directly to remote unit 300.
In this embodiment of the present invention, the access unit 100 may be a radio frequency access unit or a baseband access unit, where when the access unit 100 is a radio frequency access unit, a frequency band corresponding to a signal in the indoor distribution system is a first frequency band, and when the access unit 100 is a baseband access unit, a frequency band corresponding to a signal in the indoor distribution system is a second frequency band. Extension unit 200 may support signals in a first frequency band and signals in a second frequency band, as may remote unit 300. In this way, no matter the radio frequency access unit or the baseband access unit is accessed in the indoor distribution system, the extension unit 200 and the remote unit 300 do not need to be replaced.
In one implementation, the access unit 100 may be a radio frequency access unit, and the radio frequency access unit is connected to the base station through a coupler, and is configured to convert a first radio frequency signal input by the base station into a first optical signal, and further transmit the first optical signal to the extension unit 200.
Specifically, the radio frequency access unit may further include a wired radio frequency access unit and a wireless radio frequency access unit, the first frequency band includes a third frequency band and a fourth frequency band, when the radio frequency access unit is the wired radio frequency access unit, a frequency band corresponding to a signal in the indoor distribution system is the third frequency band, and when the radio frequency access unit is the wireless radio frequency access unit, a frequency band corresponding to a signal in the indoor distribution system is the fourth frequency band. The wired radio frequency access unit is connected with the base station through the wired coupler, and the wireless radio frequency access unit is connected with the base station through the wireless coupler.
Fig. 2 is an architecture diagram of an indoor distribution system when the access unit 100 is a wired rf access unit according to an embodiment of the present invention. The indoor distribution system comprises a wired radio frequency access unit 110, an extension unit 200 and a remote unit 300. The baseband signal is transmitted to the wired rf access unit 110 through a wired coupling method. In practical implementation, the wired rf access unit 110 is connected to the base station 400 through a wired coupler, and the wired rf access unit 110 converts the rf signal of the base station 400 into a digital signal and then performs framing, and then performs photoelectric conversion into an optical signal and transmits the optical signal to the extension unit 200 or the remote unit 300 through an optical fiber. Meanwhile, the optical signal uploaded by the extension unit 200 or the remote unit 300 is converted into a digital signal, then deframed, and then converted into an uplink radio frequency signal, and transmitted to the base station 400 through the coupler.
Fig. 3 is an architecture diagram of an indoor distribution system when the access unit 100 is a radio frequency access unit according to an embodiment of the present invention. The indoor distribution system includes a radio access unit 120, an extension unit 200, and a remote unit 300. The baseband signal is transmitted to the radio access unit 120 through a wireless coupling. In practical implementation, the radio frequency access unit 120 is connected to the base station 400 through a wireless coupler, and the radio frequency access unit 120 converts a radio frequency signal received in space into a digital signal and then performs framing, and then performs photoelectric conversion into an optical signal and transmits the optical signal to the expansion unit 200 or the remote unit 300 through an optical fiber. Meanwhile, the optical signal uploaded by the extension unit 200 or the remote unit 300 is converted into a digital signal, then deframed, and then converted into an uplink radio frequency signal, and transmitted to the base station 400 through the wireless coupler.
An embodiment of the present invention provides a radio frequency access unit, as shown in fig. 4, the radio frequency access unit includes a first radio frequency processing module 111, a first digital processing module 112, and a first optical module 113, where the first radio frequency processing module 111 is configured to perform first processing on a first radio frequency signal to generate a first digital signal, and transmit the first digital signal to the first digital processing module 112; the first processing comprises radio frequency amplification, filtering, and converting the radio frequency signal into a digital signal; the first digital processing module 112 is configured to perform a second processing on the first digital signal to generate a second digital signal, and transmit the second digital signal to the first optical module 113; the second processing comprises framing or unframing, sample rate conversion, filtering and routing conversion; the first optical module 113 is configured to convert the second digital signal into a first optical signal, and further transmit the first optical signal to the extension unit 200. Here, the rf access unit may be a wired rf access unit 110 or a wireless rf access unit 120.
Based on the above description, the embodiment of the present invention further provides an indoor distribution system in which the rf access unit includes both the wired rf access unit 110 and the wireless rf access unit 120, as shown in fig. 5.
In another implementation, the access unit 100 may be a baseband access unit, and the baseband access unit is connected to the core network 500 through a gateway; the baseband access unit is configured to convert the first electrical signal of the core network 500 into a second optical signal, and further transmit the second optical signal to the extension unit 200. Fig. 6 is an architecture diagram of an indoor distribution system when the access unit 100 is a baseband access unit according to an embodiment of the present invention. The indoor distribution system includes a baseband access unit 130, an extension unit 200, and a remote unit 300. The baseband access unit 130 is connected to the core network 500 through an ethernet, and the baseband access unit 130 is configured to modulate a signal of a gateway of the core network, convert the signal into an optical signal, and transmit the optical signal to the extension unit 200. In practical implementation, the baseband access unit 130 is connected to the core network 500 through an ethernet, modulates a signal of a gateway of the core network 500, photoelectrically converts the modulated signal into an optical signal, and transmits the optical signal to the extension unit 200 or the remote unit 300 through an optical fiber. Meanwhile, the optical signal uploaded by the extension unit 200 or the remote unit 300 is converted into a digital signal, demodulated, and then transmitted to the core network 500 through the ethernet.
An embodiment of the present invention provides a baseband access unit 130, as shown in fig. 7, the baseband access unit 130 includes an LTE module 131, a 3G module 132, a 2G module 133, a main control module 134, and a second optical module 135; the LTE module 131, the 3G module 132, and the 2G module 133 are respectively connected to the main control module 134, and the LTE module 131 is configured to respectively transmit a signal accessed from the core network 500 to the main control module 134 according to a signal system, or transmit the signal to the main control module 134 through the 3G module 132 and the 2G module 133, that is, the LTE module 131 is used as a main access module of the core network 500, and is specifically configured to transmit a first electrical signal of an LTE scheme to the main control module 134, and transmit a first electrical signal of a 3G scheme to the main control module 134 through the 3G module 132, and transmit a first electrical signal of a 2G scheme to the main control module 134 through the 3G module 132 and the 2G module 133. The main control module 134 is configured to demodulate and sample rate convert the first electrical signal; the second optical module 135 is configured to convert the first electrical signal demodulated and subjected to sample rate conversion by the main control module 134 into a second optical signal.
In practical implementation, the LTE module 131 as a main access module may be accessed to the core Network 500 through a Packet Transport Network (PTN) Network, and is responsible for returning data of all access units, and the transmission medium is a gigabit Network cable. Specifically, the LTE module 131 is connected to the 3G module 132 through a gigabit network cable, and the 3G module 132 is connected to the 2G module 133 through the gigabit network cable, so that the networks of the 3G module 132 and the 2G module 133 are all unified to one network port of the LTE module 131. The LTE module 131, the 3G module 132, and the 2G module 133 may be connected to the main control module 134 through optical fibers, the transmission rate is 3.072G, the transmission protocol is a CPRI protocol, and the three modules may be used to transmit IQ data streams and monitor data, and implement clock synchronization. The main control module 134 is configured to receive baseband signals input by the LTE module 131, the 3G module 132, or the 2G module 133, demodulate and sample rate-convert the baseband signals, and route and switch the baseband signals to the corresponding extension unit 200 or the remote unit 300 through the second optical module 135.
Of course, the indoor distributed system provided in the embodiment of the present invention also supports simultaneous access to the wired rf access unit 110, the wireless rf access unit 120, and the baseband access unit 130, and the specific connection manner may be as shown in fig. 8.
In this embodiment of the present invention, the access unit 100 may be connected to a plurality of extension units 200, each extension unit 200 is connected to a plurality of remote units 300, and specifically, the extension unit 200 is configured to forward the digital signal sent by the access unit 100 to the plurality of remote units 300; meanwhile, signals uploaded by the plurality of remote units 300 are combined and then transmitted to the access unit 100; the remote unit 300 is configured to convert a digital signal sent by the expansion unit 200 or the access unit 100 into a radio frequency signal, so as to implement wireless coverage in 2G, 3G, LTE, and other systems; and simultaneously, converting the received uplink radio frequency signal into a digital signal, and transmitting the digital signal to the extension unit 200 or the access unit 100 to realize the access and coverage of the working signal of the specific cell. May be configured as shown in fig. 9, wherein the access unit 100 and the expansion unit 200 are connected by optical fiber, and the expansion unit 200 and the remote unit 300 are connected by composite optical fiber cable.
An embodiment of the present invention provides an extension unit 200, as shown in fig. 10, the extension unit 200 includes a third optical module 201, a second digital processing module 202, a fourth optical module 203, and a remote power supply module 204; the third optical module 201 is configured to convert a third optical signal input by the access unit 100 into a second electrical signal, and transmit the second electrical signal to the second digital processing module 202; the second digital processing module 202 may process the electrical signal, and the second digital processing module 202 is configured to perform third processing on the second electrical signal to generate a third electrical signal, and transmit the third electrical signal to the fourth optical module 203; the third processing comprises framing or unframing and routing; the fourth optical module 203 is configured to convert the third electrical signal into a fourth optical signal, and transmit the fourth optical signal to the remote unit 300; the remote power module 204 is used to power the remote unit 300. Based on the remote power supply module 204, the expansion unit 200 and the remote unit 300 can support low-voltage direct-current remote power supply through the photoelectric hybrid cable, the remote power supply has short-circuit protection and self-recovery functions, and the power supply fault isolation capability between ports.
An embodiment of the present invention provides a remote unit 300, as shown in fig. 11, the remote unit 300 includes a fifth optical module 301, a third digital processing module 302, a second radio frequency processing module 303, and an antenna module 304; the fifth optical module 301 is configured to convert the fourth optical signal into a fourth electrical signal; the third digital processing module 302 is configured to perform fourth processing on the fourth electrical signal to generate a second radio frequency signal; the fourth processing comprises framing or unframing, filtering, sampling rate conversion and conversion of digital signals into radio frequency signals; the second radio frequency processing module 303 is configured to perform fifth processing on the second radio frequency signal, generate a third radio frequency signal, and transmit the third radio frequency signal to the antenna module 304; the fifth processing comprises radio frequency signal amplification, filtering, shunting or combining; the antenna module 304 is configured to transmit the third rf signal to the space through the internal antenna.
In addition, in order to better explain the present invention, in practical use, the wired rf access unit 110 may directly feed the rf signal of the base station 400 in a coupler + attenuator manner, and specifically, may feed the wired rf signal of the LTE scheme and/or the wired rf signal of the 3G scheme and/or the wired rf signal of the 2G scheme in a radio frequency manner. In order to implement MIMO, the wired rf access unit 110 may reserve four wired rf interfaces for the outside, and for example, the interfaces reserved for the outside may be as follows:
interface 1: GSM900/FDD900 or GSM1800/FDDLTE1800
And (3) interface 2: GSM900/FDD900 or GSM1800/FDDLTE1800
And interface 3: TDD-LTE (D/E/F)
And interface 4: TDD-LTE (D/E/F)
The radio frequency access unit 120 may be configured at a location with strong signal, so as to receive a radio frequency signal of an LTE system and/or a radio frequency signal of a 3G system and/or a radio frequency signal of a 2G system. The radio frequency access unit 120 may reserve two radio frequency interfaces for the outside, and still taking a mobile operator as an example, the reserved interfaces for the outside may be as follows:
interface 2 is TDD-LTE (D/E/F).
The baseband access unit 130 may be connected to the core network 500 by using a gigabit network cable connection gateway, and the baseband access unit 130 may serve as a baseband processing unit and control unit, where an LTE module serves as a main access module for transmitting signals accessed from the core network 500 to different modules according to different standards. The baseband access unit 130 may reserve a gigabit ethernet port for the outside.
In the technical scheme, the extension unit and the remote unit in the indoor distribution system can both support the signal of the first frequency band and the signal of the second frequency band, namely, the extension unit and the remote unit can both support the signal transmitted by the radio frequency access unit and the baseband access unit.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An indoor distribution system, comprising:
the system comprises an access unit, an expansion unit and a remote unit;
the extension unit supports a first frequency band and a second frequency band, and the remote unit supports the first frequency band and the second frequency band; the first frequency band is a frequency band corresponding to the case that the access unit is a radio frequency access unit, and the second frequency band is a frequency band corresponding to the case that the access unit is a baseband access unit;
the baseband access unit is connected with a core network through a gateway; the baseband access unit is configured to convert a first electrical signal of the core network into a second optical signal, and further transmit the second optical signal to the extension unit;
the baseband access unit comprises an LTE module, a 3G module, a 2G module and a main control module; the LTE module, the 3G module and the 2G module are sequentially connected, and the LTE module, the 3G module and the 2G module are respectively connected with the main control module;
the LTE module is used for transmitting the first electric signal of the LTE system to the main control module; transmitting the first electric signal of the 3G system to the main control module through the 3G module; transmitting the first electric signal of the 2G standard to the main control module through the 3G module and the 2G module; the main control module is used for demodulating and converting the sampling rate of the first electric signal.
2. The system of claim 1, wherein the radio access unit is connected to a base station through a coupler; the radio frequency access unit is used for converting a first radio frequency signal input by the base station into a first optical signal and further transmitting the first optical signal to the extension unit.
3. The system of claim 2, wherein the radio access units comprise wired radio access units and wireless radio access units; the first frequency band comprises a third frequency band and a fourth frequency band; the third frequency band is a frequency band corresponding to the radio frequency access unit which is a wired radio frequency access unit; and the fourth frequency band is a frequency band corresponding to the radio frequency access unit which is a wireless radio frequency access unit.
4. The system of claim 3, wherein the wired radio frequency access unit is connected to the base station through a wired coupler; the wireless radio frequency access unit is connected with the base station through a wireless coupler.
5. The system of claim 2, wherein the radio frequency access unit comprises a first radio frequency processing module, a first digital processing module, and a first optical module;
the first radio frequency processing module is used for performing first processing on the first radio frequency signal to generate a first digital signal and transmitting the first digital signal to the first digital processing module; the first processing comprises radio frequency amplification, filtering, and converting a radio frequency signal into a digital signal;
the first digital processing module is used for performing second processing on the first digital signal to generate a second digital signal and transmitting the second digital signal to the first optical module; the second processing comprises framing or de-framing, sample rate conversion, filtering and routing conversion;
the first optical module is used for converting the second digital signal into the first optical signal.
6. The system of claim 1, wherein the baseband access unit further comprises a second optical module for converting the first electrical signal demodulated and sample rate converted by the master control module into the second optical signal.
7. The system of claim 1, wherein the expansion unit comprises a third optical module, a second digital processing module, a fourth optical module, and a remote power module;
the third optical module is used for converting a third optical signal input by the access unit into a second electrical signal and transmitting the second electrical signal to the second digital processing module;
the second digital processing module is configured to perform third processing on the second electrical signal to generate a third electrical signal, and transmit the third electrical signal to the fourth optical module; the third processing comprises framing or unframing and routing;
the fourth optical module is used for converting the third electrical signal into a fourth optical signal and transmitting the fourth optical signal to the remote unit;
the remote power supply module is used for supplying power to the remote unit.
8. The system of claim 1, wherein said remote unit comprises a fifth optical module, a third digital processing module, a second radio frequency processing module, an antenna module;
the fifth optical module is used for converting a fourth optical signal into a fourth electrical signal;
the third digital processing module is used for performing fourth processing on the fourth electric signal to generate a second radio frequency signal and transmitting the second radio frequency signal to the second radio frequency processing module; the fourth processing comprises framing or unframing, filtering, sampling rate conversion and conversion of digital signals into radio frequency signals;
the second radio frequency processing module is used for performing fifth processing on the second radio frequency signal to generate a third radio frequency signal and transmitting the third radio frequency signal to the antenna module; the fifth processing comprises radio frequency signal amplification, filtering, shunting or combining;
the antenna module is used for transmitting the third radio frequency signal.
9. The system of any one of claims 1 to 8, wherein the access unit is connected to a plurality of expansion units; each expansion unit connects a plurality of remote units.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338220.4A CN111010680B (en) | 2019-12-23 | 2019-12-23 | Indoor distribution system |
| PCT/CN2020/138484 WO2021129637A1 (en) | 2019-12-23 | 2020-12-23 | Indoor distribution system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338220.4A CN111010680B (en) | 2019-12-23 | 2019-12-23 | Indoor distribution system |
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| CN111010680A CN111010680A (en) | 2020-04-14 |
| CN111010680B true CN111010680B (en) | 2021-09-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111010680B (en) * | 2019-12-23 | 2021-09-24 | 京信网络系统股份有限公司 | Indoor distribution system |
| CN112702753B (en) * | 2021-03-24 | 2021-06-08 | 四川创智联恒科技有限公司 | Method, device, equipment and storage medium for automatic configuration recovery of communication radio frequency unit |
| CN114245393B (en) * | 2021-12-21 | 2023-09-12 | 中信科移动通信技术股份有限公司 | Wireless distributed signal coverage system |
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| CN109257098A (en) * | 2018-09-13 | 2019-01-22 | 郑州三友软件科技有限公司 | A kind of more scene communication full-service light distribution system control methods |
| CN109379140A (en) * | 2018-11-22 | 2019-02-22 | 淮北市硕华机械设备有限公司 | A kind of optical fiber distribution system and its communication means |
| CN111010680B (en) * | 2019-12-23 | 2021-09-24 | 京信网络系统股份有限公司 | Indoor distribution system |
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| CN101321010A (en) * | 2008-03-07 | 2008-12-10 | 深圳国人通信有限公司 | Digital covering method and system |
| CN202841527U (en) * | 2012-09-18 | 2013-03-27 | 京信通信系统（中国）有限公司 | Indoor distribution system with broadband routing function |
| CN103117909A (en) * | 2012-12-26 | 2013-05-22 | 福建邮科通信技术有限公司 | Multi-system digital optical fiber category 5 cable distribution system |
| CN204013544U (en) * | 2014-06-13 | 2014-12-10 | 广东阿尔创通信技术股份有限公司 | A kind of multi-service optical fiber access indoor distributed system |
| CN106209240A (en) * | 2016-07-08 | 2016-12-07 | 武汉虹信通信技术有限责任公司 | A kind of novel multimode fibre compartment system |
| CN106230509A (en) * | 2016-08-10 | 2016-12-14 | 武汉虹信通信技术有限责任公司 | A kind of method and system utilizing ten thousand mbit ethernet transmission wireless signals |
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| WO2021129637A1 (en) | 2021-07-01 |
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