CN213602643U - 4/5G base station optical transmission demultiplexing system - Google Patents
4/5G base station optical transmission demultiplexing system Download PDFInfo
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- CN213602643U CN213602643U CN202023248333.6U CN202023248333U CN213602643U CN 213602643 U CN213602643 U CN 213602643U CN 202023248333 U CN202023248333 U CN 202023248333U CN 213602643 U CN213602643 U CN 213602643U
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Abstract
The utility model discloses an 4/5G basic station optical transmission demultiplexing system, include: first passive wavelength division equipment, second passive wavelength division equipment and transmission fibre core, wherein: the first passive wavelength division device includes: the first optical module equipment comprises a plurality of first color light modules and a plurality of second color light modules, wherein the first color light modules are used for acquiring electromagnetic wave signals, modulating the electromagnetic wave signals into optical signals with different wavelengths and sending the optical signals; the first wavelength division demultiplexer is connected with the first optical module equipment and used for receiving optical signals with different wavelengths, carrying out wave combination processing and generating and transmitting wave combination optical signals; the transmission fiber core is used for transmitting the combined wave optical signal; the second passive wavelength division device includes: the second wavelength division demultiplexer receives the composite optical signal, performs light division processing on the composite optical signal, and divides the composite optical signal into multiple paths of optical signals with different wavelengths; and the second optical module equipment comprises a plurality of second color light modules and is used for receiving the multipath optical signals, demodulating the multipath optical signals, generating multipath electromagnetic wave signals and sending the multipath electromagnetic wave signals to corresponding communication equipment.
Description
Technical Field
The utility model relates to an optical fiber communication field, concretely relates to 4/5G base station optical transmission demultiplexing system.
Background
With the rapid development of the internet industry, the construction of 4G base stations and 5G base stations has been changed to a white heat state, the forwarding requirements of 4G electromagnetic wave signals and 5G electromagnetic wave signals are increasingly intensive, while the radio frequency modules of each 4G base station and 5G base station need corresponding outgoing optical cables to transmit the signals back to a baseband processing Unit (BBU) of an end office machine room, and as a region, the number of required base stations is more and more, and the outgoing optical cables of one end office machine room are more and more. Due to the fact that the cost of re-laying the optical cable is high, and the resources of the laid pipelines are limited, the resource space is less and less, the resources of the optical cable are insufficient, and signals cannot be transmitted.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides an 4/5G base station optical transmission demultiplexing system to solve the problem that the optical cable resources existing in the related art are not enough and the base station signals cannot be transmitted.
According to a first aspect, an embodiment of the present invention provides an 4/5G base station optical transmission demultiplexing system, including: a first passive wavelength division device, a second passive wavelength division device, and a transmission core, wherein: the first passive wavelength division device includes: the first optical module device comprises a plurality of first color light modules and a plurality of second color light modules, wherein the first color light modules are used for acquiring electromagnetic wave signals, modulating the electromagnetic wave signals into optical signals with different wavelengths and sending the optical signals; the first wavelength division demultiplexer is in communication connection with the first optical module device and is used for receiving optical signals with different wavelengths, performing multiplexing processing on the optical signals with different wavelengths, and generating and transmitting the multiplexed optical signals; the transmission fiber core is used for transmitting the combined wave optical signal; the second passive wavelength division device includes: the second wavelength division demultiplexer is in communication connection with the second optical module device, receives the combined wave optical signal, performs optical division processing on the combined wave optical signal, and divides the combined wave optical signal into multiple paths of optical signals with different wavelengths; and the second optical module equipment comprises a plurality of second color light modules and is used for receiving the multipath optical signals, demodulating the multipath optical signals, generating multipath electromagnetic wave signals and sending the multipath electromagnetic wave signals to corresponding communication equipment.
With reference to the first aspect, in a first implementation manner of the first aspect, the first wavelength division demultiplexer includes: a plurality of first wavelength ports, first on-off port and first on-off module, wherein: the first combining and splitting module is configured to receive optical signals with different wavelengths through a first plurality of wavelength ports, respectively, combine the optical signals with different wavelengths to generate a combined optical signal, and send the combined optical signal through the first combining and splitting port, where the plurality of first wavelength ports are disposed near the first optical module device side, and the first combining and splitting port is disposed far away from the first optical module device side; the second wavelength division demultiplexer includes a plurality of second wavelength ports, a second combiner/divider port, and a second combiner/divider module, wherein: the second combining and splitting module is configured to receive the combined wave optical signal through the second combining and splitting port, split the combined wave optical signal according to a wavelength, divide the combined wave optical signal into multiple paths of optical signals with different wavelengths, and send the optical signals through a plurality of second wavelength ports, where the plurality of second wavelength ports are respectively disposed near the second optical module device side, and the second combining and splitting port is disposed far away from the second optical module device side.
With reference to the first aspect, in a second embodiment of the first aspect, the system further includes: the first communication equipment is used for broadcasting the electromagnetic wave signals, a plurality of ports are arranged on the first communication equipment, and the first color light module can be plugged into each port of the first communication equipment in a pluggable manner; the second communication equipment is used for broadcasting the electromagnetic wave signals, a plurality of ports are arranged on the second communication equipment, and the second color light module can be plugged into each port of the second communication equipment in a pluggable mode.
With reference to the first aspect, in a third implementation manner of the first aspect, optical signal transmission wavelengths of the first color light modules are different from each other, optical signal transmission wavelengths of the second color light modules are different from each other, and the optical signal transmission wavelength of each first color light module is different from the optical signal transmission wavelength of each second color light module.
With reference to the third implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the optical signal transmission wavelengths of the first color light modules are 1291nm, 1331nm and 1371nm, respectively, and the optical signal transmission wavelengths of the color light modules in the second optical module device are 1271nm, 1311nm and 1351nm, respectively.
With reference to the third embodiment of the first aspect, in a fifth embodiment of the first aspect, the optical signal transmission wavelengths of the first color light modules are 1571nm, 1531nm, 1491nm, 1291nm, 1331nm and 1371nm, and the optical signal transmission wavelengths of the second color light modules are 1551nm, 1511nm, 1471nm, 1271nm, 1311nm and 1351 nm.
With reference to the third implementation manner of the first aspect, in a sixth implementation manner of the first aspect, each wavelength port on the first wavelength division demultiplexer corresponds to each first color light module one to one; each wavelength port on the second wavelength division demultiplexer corresponds to each second color light module one by one; each first color light module and each second color light module are used in a one-to-one correspondence manner.
With reference to the first aspect, in a seventh implementation manner of the first aspect, the light emitting power of each of the first color light modules and each of the second color light modules is-4.8 dBm to 2 dBm.
With reference to the first aspect, in an eighth implementation manner of the first aspect, the receiving sensitivity of each of the first color light modules and each of the second color light modules is-13.8 dBm.
With reference to the second implementation manner of the first aspect, in a ninth implementation manner of the first aspect, the first communication device is a BBU device, and the second communication device may be an RRU device or an AAU device; or, the first communication device is an RRU device or an AAU device, and the second communication device may be a BBU device.
The utility model discloses technical scheme has following advantage:
the utility model provides a pair of 4/5G basic station optical transmission demultiplexing system, include: a first passive wavelength division device, a second passive wavelength division device, and a transmission core, wherein: the first passive wavelength division device includes: the first optical module device comprises a plurality of first color light modules and a plurality of second color light modules, wherein the first color light modules are used for acquiring electromagnetic wave signals, modulating the electromagnetic wave signals into optical signals with different wavelengths and transmitting the optical signals; the first wavelength division demultiplexer is in communication connection with the first optical module device and used for receiving optical signals with different wavelengths, carrying out multiplexing processing on the optical signals with different wavelengths and generating and transmitting multiplexed optical signals; the transmission fiber core is used for transmitting the combined wave optical signal; the second passive wavelength division device includes: the second wavelength division demultiplexer is in communication connection with the second optical module equipment, receives the composite wave optical signal, performs light splitting processing on the composite wave optical signal, and divides the composite wave optical signal into multiple paths of optical signals with different wavelengths; and the second optical module equipment comprises a plurality of second color light modules and is used for receiving the multipath optical signals, demodulating the multipath optical signals, generating multipath electromagnetic wave signals and sending the multipath electromagnetic wave signals to corresponding communication equipment.
Through implementing the technical scheme of the utility model, it is not enough to have solved the optical cable resource that exists among the correlation technique, and the unable problem of transmitting of basic station signal combines each various optical module and wavelength division demultiplexer among first passive wavelength deviding equipment and the passive wavelength deviding equipment of second, realizes that the light signal of different wavelength assembles and separates, transmits in same optic fibre then, and the light signal of having realized different wavelengths bears different communication service, mutual noninterference has improved the transmission capacity of optic fibre.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a specific example of a transmission system of an optical fiber signal according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a first wavelength division demultiplexer in a transmission system of an optical fiber signal according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second wavelength division demultiplexer in a transmission system of an optical fiber signal according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another specific example of the transmission system of the optical fiber signal according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
With the rapid development and increasing popularization of internet technology, the number of 4G and 5G wireless base stations is also rapidly increasing, and the forwarding requirements of signals of the 4G and 5G wireless base stations are dense, that is, a Remote Radio Unit (RRU) of each 4G wireless base station and a Remote Radio Unit (AAU) of the 5G wireless base station all need to be pulled back to a BBU of an end office machine room by an optical cable.
With the increasing number of the required 4G wireless base stations and 5G wireless base stations in a region, the outgoing optical cables of an end office machine room are increased. And because the cost of laying the optical cable again is higher, and the pipeline resource of laying the optical cable is limited, leads to unable sufficient optical cable resource that provides each wireless base station and uses, in order to solve above-mentioned problem, the utility model provides an 4/5G base station optical transmission demultiplexing system. The purpose is that optical signals with different wavelengths can be transmitted in the same optical fiber, so that different communication services can be borne, mutual interference is avoided, and the transmission capacity of the optical fiber is improved.
The embodiment of the utility model provides an 4/5G base station optical transmission demultiplexing system, as shown in FIG. 1, include: a first passive wavelength division device 100, a second passive wavelength division device 200, and a transmission core 300, wherein:
the first passive wavelength division device 100 includes:
the first optical module device 101 includes a plurality of first color light modules 10, and is configured to acquire an electromagnetic wave signal, modulate the electromagnetic wave signal into optical signals with different wavelengths, and transmit the optical signals; in this embodiment, the color light module may be a modem for converting between optical signals and electromagnetic wave signals; specifically, the communication base station sends electromagnetic wave signals carrying different service types to a plurality of color optical modules in the first optical module device 101, where the optical signal sending wavelengths of the color optical modules are different, and each color optical module modulates the electromagnetic wave signals into optical signals with corresponding sending wavelengths, and then transmits the optical signals to the first wavelength division demultiplexer.
The first wavelength division demultiplexer 11 is in communication connection with the first optical module device 101, and is configured to receive optical signals with different wavelengths, perform multiplexing processing on the optical signals with different wavelengths, and generate and transmit a multiplexed optical signal; in this embodiment, the first wavelength division demultiplexer 11 combines the received multiple optical signals and transmits the combined signals to the transmission core 300.
A transmission core 300 for transmitting a combined wave optical signal; in this embodiment, the transmission core 300 is a bidirectional transmission channel, and may transmit the optical signal from the first wavelength division demultiplexer 11 to the second wavelength division demultiplexer, or may transmit the optical signal from the second wavelength division demultiplexer to the first wavelength division demultiplexer 11.
The second passive wavelength division device 200 includes:
the second wavelength division demultiplexer 21 is in communication connection with the second optical module device, receives the combined wave optical signal, performs optical division processing on the combined wave optical signal, and divides the combined wave optical signal into multiple paths of optical signals with different wavelengths; in this embodiment, after receiving the combined optical signal transmitted through the transmission fiber core 300, the second wavelength division demultiplexer 21 divides the combined optical signal into multiple paths of optical signals according to the wavelength of the combined optical signal, and then sends each path of optical signal to a corresponding color light module according to the wavelength of each optical signal.
The second optical module device 201 includes a plurality of second color light modules 20, and is configured to receive multiple paths of optical signals, demodulate the multiple paths of optical signals, generate multiple paths of electromagnetic wave signals, and send the multiple paths of electromagnetic wave signals to corresponding communication devices. In this embodiment, the second optical module device 201 includes a plurality of second color light modules 20, where the transmission wavelengths of the second color light modules 20 are different, and the receiving wavelengths of the optical signals that can be received are different; specifically, the color optical module receives an optical signal with a corresponding wavelength, demodulates the optical signal to generate an electromagnetic wave signal, and then sends the electromagnetic wave signal carrying different service types to corresponding communication equipment, which may be BBU equipment; or may be a radio frequency module RRU device of a 4G wireless communication base station, or a radio frequency module AAU device of a 5G wireless communication base station.
The utility model provides a pair of 4/5G basic station optical transmission demultiplexing system, include: a first passive wavelength division device 100, a second passive wavelength division device 200, and a transmission core 300, wherein: the first passive wavelength division device 100 includes: the first optical module device 101 includes a plurality of first color light modules 10, and is configured to acquire an electromagnetic wave signal, modulate the electromagnetic wave signal into optical signals with different wavelengths, and transmit the optical signals; the first wavelength division demultiplexer 11 is in communication connection with the first optical module device 101, and is configured to receive optical signals with different wavelengths, perform multiplexing processing on the optical signals with different wavelengths, and generate and transmit a multiplexed optical signal; a transmission core 300 for transmitting a combined wave optical signal; the second passive wavelength division device 200 includes: the second wavelength division demultiplexer 21 is in communication connection with the second optical module device 201, receives the combined optical signal, performs optical division processing on the combined optical signal, and divides the combined optical signal into multiple paths of optical signals with different wavelengths; the second optical module device 201 includes a plurality of second color light modules 20, and is configured to receive multiple paths of optical signals, demodulate the multiple paths of optical signals, generate multiple paths of electromagnetic wave signals, and send the multiple paths of electromagnetic wave signals to corresponding communication devices.
Through implementing the technical scheme of the utility model, it is not enough to have solved the optical cable resource that exists among the correlation technique, the unable problem of transmission of base station signal, each various optical module and wavelength division demultiplexer in combining first passive wavelength deviding equipment 100 and the passive wavelength deviding equipment 200 of second, the light signal who realizes different wavelengths assembles and separates, transmit in same optic fibre then, the light signal who has realized different wavelengths bears different communication service, mutual noninterference has improved the transmission capacity of optic fibre.
In an alternative embodiment, as shown in fig. 2 and 3, the first wavelength-division demultiplexer 11 includes: a plurality of first wavelength ports 111, a first combiner/divider port 113, and a first combiner/divider module 112, wherein:
a first combining and splitting module 112, configured to receive optical signals with different wavelengths through a plurality of first wavelength ports 111, respectively, perform combining processing on the optical signals with different wavelengths, generate a combined optical signal, and send the combined optical signal through a first combining and splitting port 113, where the plurality of first wavelength ports 111 are disposed near the first optical module device 101, and the first combining and splitting port 113 is disposed far away from the first optical module device 101;
in this embodiment, the first wavelength division demultiplexer 11 may be a multiplexer/demultiplexer, and is configured to perform frequency division multiplexing or wavelength division multiplexing on optical signals with different wavelengths, so as to transmit the optical signals with different wavelengths on the same transmission core 300. The ports of the first wavelength division demultiplexer 11 are respectively connected to the tail fiber of each first color light module 10, receive each optical signal transmitted by each first color light module 10, and transmit the combined optical signal to the transmission fiber core 300 through the combining and dividing ports after generating the combined optical signal.
The second wavelength division demultiplexer 21 includes a plurality of second wavelength ports 211, a second multiplexing/demultiplexing port 213, and a second multiplexing/demultiplexing module 212, where:
the second add/drop module is configured to receive the combined-wave optical signal through a second add/drop port 213, perform optical splitting processing on the combined-wave optical signal according to the wavelength, divide the combined-wave optical signal into multiple paths of optical signals with different wavelengths, and respectively send the optical signals through a plurality of second wavelength ports 211, where the plurality of second wavelength ports 211 are respectively disposed on a side close to the second optical module device 201, and the second add/drop port 213 is disposed on a side far from the second optical module device 201. In this embodiment, the first add/drop module 112 receives the combined optical signal on the transmission core 300 through the second add/drop port 213, then divides the combined optical signal into multiple optical signals that are the same as the multiple optical signals generated by the first color optical module 10 according to the transmission wavelength of each optical signal in the combined optical signal, and then transmits the multiple optical signals through each second wavelength port 211 on the second wavelength division demultiplexer 21.
The utility model provides a pair of 4/5G basic station optical transmission demultiplexing system combines the first submodule 112 that closes in the first wavelength demultiplexer 11 to and the second in the second wavelength demultiplexer 21 closes submodule 212, can realize transporting on multiplexing the optical signal of different wavelength on same root fibre core, and on demultiplexing the optical signal of different wavelength in a fibre core to different fibre cores, improved the transmission efficiency and the transmission capacity of optic fibre core.
In an alternative embodiment, as shown in fig. 4, the optical fiber signal transmission system further includes:
the first communication device 400 is used for broadcasting electromagnetic wave signals, a plurality of ports are arranged on the first communication device 400, and the first color light module 10 can be plugged into each port of the first communication device 400;
the second communication device is used for broadcasting electromagnetic wave signals, a plurality of ports are arranged on the second communication device, and the second color light module 20 can be plugged into each port of the second communication device.
Optionally, the first communication device 400 is a BBU device, and the second communication device may be an RRU device or an AAU device, where when applied to a 4G network, the second communication device may be an RRU device; when applied to a 5G network, the second communication device may be an AAU device;
optionally, the first communication device 400 is an RRU device or an AAU device, and the second communication device may be a BBU device, where when applied to a 4G network, the second communication device may be an RRU device; when applied to a 5G network, the second communication device may be an AAU device.
Optionally, the first communication device 400 is a BBU device, and the second communication device 500 may be an RRU device and an AAU device;
optionally, the first communication device 400 is an RRU device and an AAU device, and the second communication device 500 may be a BBU device.
The utility model provides a pair of 4/5G basic station optical transmission demultiplexing system combines first communication equipment 400 and second communication equipment 500, can realize the bidirectional transmission of electromagnetic wave signal and light signal.
In an optional embodiment, the optical signal transmission wavelengths of the first color light modules 10 are different from each other, the optical signal transmission wavelengths of the second color light modules 20 are different from each other, and the optical signal transmission wavelength of each first color light module 10 is different from the optical signal transmission wavelength of each second color light module 20. In this embodiment, the first optical module device 101 may include three color light modules, each of which has a transmission wavelength of 1291nm, 1331nm, and 1371nm, and in this case, the second optical module device 201 also includes three color light modules, each of which has a transmission wavelength of 1271nm, 1311nm, and 1351 nm.
Specifically, in practical application, the 1271nm color light module can be plugged into the AAU1 optical port of the AAU device, the 1311nm color light module can be plugged into the AAU1 optical port of the AAU device, and the 1351nm color light module can be plugged into the AAU1 optical port of the AAU device; the 1291nm color light module can be plugged into a BBU1 optical port of the BBU equipment, the 1331nm color light module can be plugged into a BBU1 optical port of the BBU equipment, and the 1371nm color light module can be plugged into a BBU1 optical port of the BBU equipment, wherein 1271nm and 1291nm are used correspondingly, 1311nm and 1331nm are used correspondingly, and 1351nm and 1371nm are used correspondingly.
In an optional embodiment, the first optical module device 101 may include six color light modules, each of which has a transmission wavelength of 1571nm, 1531nm, 1491nm, 1291nm, 1331nm, and 1371nm, and in this case, the second optical module device 201 also includes three color light modules, each of which has a transmission wavelength of 1551nm, 1511nm, 1471nm, 1271nm, 1311nm, and 1351 nm.
In an optional embodiment, each wavelength port on the first wavelength division demultiplexer 11 corresponds to each first color light module 10 one to one; each wavelength port on the second wavelength division demultiplexer 21 corresponds to each second color light module 20 one to one; each first color light module 10 and each second color light module 20 are used in a one-to-one correspondence. In this embodiment, when the electromagnetic wave signal is transmitted to the 1271nm color light module, the 1271nm color light module modulates the electromagnetic wave signal to generate an optical signal with a transmission wavelength of 1271nm, and after the combination of the first wavelength division demultiplexer 11 and the division of the second wavelength division demultiplexer 21, the optical signal with the wavelength of 1271nm is generated, and at this time, the optical signal is received by the second color light module 201291nm and is demodulated to generate an electromagnetic wave signal to be transmitted to the communication device.
In an alternative embodiment, the light emitting power of each first color light module 10 and each second color light module 20 is-4.8 dBm to 2dBm, which can increase the transmission distance and the transmission range of the optical signal.
In an alternative embodiment, the receiving sensitivity of each first color light module 10 and each second color light module 20 is-13.8 dBm, which can increase the transmission distance and the transmission range of the optical signal.
In the following, a transmission system of optical fiber signals is described in detail with reference to a specific embodiment, the first wavelength division demultiplexer 11 and the second wavelength division demultiplexer 21 are both six-channel wavelength division demultiplexers, wherein a base station side signal (i.e., an electromagnetic wave signal) is sent from the BBU port 1, and is modulated and processed by the color optical module 1 of the port to become an optical signal with a sending wavelength of 1271 nm.
The optical signal with the sending wavelength of 1271nm is sent to a 1271nm wavelength port corresponding to a wavelength division demultiplexer at the near BBU equipment side, enters the wavelength division demultiplexer, is subjected to wave combination processing together with the wavelengths of other ports to generate a combined optical signal, and is sent to a certain fiber core of an outgoing optical cable at the line side through a wave combination and division port (COM).
Then, the optical signal with the wavelength of 1271nm is sent out from the 1271nm wavelength port of the wavelength division demultiplexer on the RRU side to a corresponding port of an RRU, such as RRU1 in the figure, after entering the wavelength division demultiplexer on the near RRU side from the combined and split wavelength port and being subjected to optical splitting processing. The RRU1 has color light modules with different wavelengths plugged into its ports, and the color light module 2 shown in the figure is generally configured with a module with a wavelength of 1291 nm. At this time, the 1271nm optical signal enters the color light module 2, is demodulated and reduced into an electrical signal, and enters the RRU1 equipment for final processing.
Optionally, an optical signal with a transmission wavelength of 1291nm may be sent from the color light module 2 on the RRU1, and after similar processing, reach the port 1 with the color light module 1 inserted on the BBU side. The above process is a processing process of one optical signal, and transmission processes of other optical signals are similar and will not be described again.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. An 4/5G base station optical transmission demultiplexing system, comprising: a first passive wavelength division device, a second passive wavelength division device, and a transmission core, wherein:
the first passive wavelength division device includes:
the first optical module device comprises a plurality of first color light modules and a plurality of second color light modules, wherein the first color light modules are used for acquiring electromagnetic wave signals, modulating the electromagnetic wave signals into optical signals with different wavelengths and sending the optical signals;
the first wavelength division demultiplexer is in communication connection with the first optical module device and is used for receiving optical signals with different wavelengths, performing multiplexing processing on the optical signals with different wavelengths, and generating and transmitting the multiplexed optical signals;
the transmission fiber core is used for transmitting the combined wave optical signal;
the second passive wavelength division device includes:
the second wavelength division demultiplexer is in communication connection with the second optical module device, receives the combined wave optical signal, performs light splitting processing on the combined wave optical signal, and divides the combined wave optical signal into multiple paths of optical signals with different wavelengths;
and the second optical module equipment comprises a plurality of second color light modules and is used for receiving the multipath optical signals, demodulating the multipath optical signals, generating multipath electromagnetic wave signals and sending the multipath electromagnetic wave signals to corresponding communication equipment.
2. The system of claim 1, wherein the first wavelength division demultiplexer comprises: a plurality of first wavelength ports, first on-off port and first on-off module, wherein:
the first combining and splitting module is configured to receive optical signals with different wavelengths through a plurality of first wavelength ports, respectively, combine the optical signals with different wavelengths to generate a combined optical signal, and send the combined optical signal through the first combining and splitting port, where the plurality of first wavelength ports are disposed near the first optical module device side, and the first combining and splitting port is disposed far away from the first optical module device side;
the second wavelength division demultiplexer includes a plurality of second wavelength ports, a second combiner/divider port, and a second combiner/divider module, wherein:
the second combining and splitting module is configured to receive the combined wave optical signal through the second combining and splitting port, split the combined wave optical signal according to a wavelength, divide the combined wave optical signal into multiple paths of optical signals with different wavelengths, and send the optical signals through a plurality of second wavelength ports, where the plurality of second wavelength ports are respectively disposed near the second optical module device side, and the second combining and splitting port is disposed far away from the second optical module device side.
3. The system of claim 1, further comprising:
the first communication equipment is used for broadcasting the electromagnetic wave signals, a plurality of ports are arranged on the first communication equipment, and the first color light module can be plugged into each port of the first communication equipment in a pluggable manner;
the second communication equipment is used for broadcasting the electromagnetic wave signals, a plurality of ports are arranged on the second communication equipment, and the second color light module can be plugged into each port of the second communication equipment in a pluggable mode.
4. The system of claim 1, wherein the optical signal transmission wavelength of each of the first color light modules is different from the optical signal transmission wavelength of each of the second color light modules, and wherein the optical signal transmission wavelength of each of the first color light modules is different from the optical signal transmission wavelength of each of the second color light modules.
5. The system of claim 4, wherein the optical signal transmission wavelengths of the first color light modules are 1291nm, 1331nm and 1371nm, and the optical signal transmission wavelengths of the color light modules in the second light module devices are 1271nm, 1311nm and 1351 nm.
6. The system of claim 4, wherein the optical signal transmission wavelengths of the first color light modules are 1571nm, 1531nm, 1491nm, 1291nm, 1331nm and 1371nm, and the optical signal transmission wavelengths of the second color light modules are 1551nm, 1511nm, 1471nm, 1271nm, 1311nm and 1351 nm.
7. The system of claim 4, wherein each wavelength port of the first wavelength division demultiplexer corresponds to each first color light module one to one; each wavelength port on the second wavelength division demultiplexer corresponds to each second color light module one by one; each first color light module and each second color light module are used in a one-to-one correspondence manner.
8. The system of claim 1, wherein the luminous power of each of the first color light modules and each of the second color light modules is between-4.8 dBm and 2 dBm.
9. The system of claim 1, comprising: the receiving sensitivity of each first color light module and each second color light module is-13.8 dBm.
10. The system of claim 3, wherein the first communication device is a BBU device, and the second communication device is an RRU device or an AAU device;
or, the first communication device is an RRU device or an AAU device, and the second communication device may be a BBU device.
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| CN202023248333.6U CN213602643U (en) | 2020-12-28 | 2020-12-28 | 4/5G base station optical transmission demultiplexing system |
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