CN117439693A - Passive optical network system, signal transmission method, device and terminal - Google Patents
Passive optical network system, signal transmission method, device and terminal Download PDFInfo
- Publication number
- CN117439693A CN117439693A CN202210836030.0A CN202210836030A CN117439693A CN 117439693 A CN117439693 A CN 117439693A CN 202210836030 A CN202210836030 A CN 202210836030A CN 117439693 A CN117439693 A CN 117439693A
- Authority
- CN
- China
- Prior art keywords
- transmission rate
- power budget
- signal
- spatial channel
- spatial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000008054 signal transmission Effects 0.000 title claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims abstract description 35
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 180
- 238000012545 processing Methods 0.000 claims description 23
- 238000004891 communication Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0228—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths
- H04J14/023—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0215—Architecture aspects
- H04J14/022—For interconnection of WDM optical networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0221—Power control, e.g. to keep the total optical power constant
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0254—Optical medium access
- H04J14/0256—Optical medium access at the optical channel layer
- H04J14/026—Optical medium access at the optical channel layer using WDM channels of different transmission rates
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0278—WDM optical network architectures
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention provides a passive optical network system, a signal transmission method, a signal transmission device and a terminal, and relates to the technical field of communication. The passive optical network system comprises an Optical Line Terminal (OLT) and an Optical Network Unit (ONU), and further comprises: a spatial channel multiplexer, a spatial channel demultiplexer, and at least one power divider; the spatial channel multiplexer is connected with the OLT through a single-mode fiber, the spatial channel multiplexer is connected with the spatial channel demultiplexer through a space division multiplexing optical fiber, and the spatial channel demultiplexer is connected with at least one power divider through the single-mode fiber. The scheme of the invention solves the problems that the power budget of the high-speed PON is lower and the existing network ODN is difficult to be compatible.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a passive optical network system, a signal transmission method, a signal transmission device, and a terminal.
Background
In recent years, with the advent of new services such as 5G mobile communication, industrial internet, and autopilot, and the rapid development of services such as telemedicine and online education, the demands of the current society for network bandwidth have been exponentially increased. At present, with the acceleration of the construction process of the high-speed bandwidth network in China, the acceleration of the fixed bandwidth network from optical fiber to home is towards the giga age of everything optically, and the optical fiber bandwidth has become a mainstream access mode. On the basis of popularization and coverage in urban areas of China, optical fiber communication is expanding to rural areas and remote areas in a large scale, and the number of internet bandwidth access ports is expected to further increase in the future.
With the continuous increase of network users and the continuous emergence of new network data services, PON (Passive Optical Network ) has become a mainstream technology of an optical access network. The main technologies of passive optical networks mainly include GPON (Gigabit-Capable Passive Optical Network, gigabit passive optical network) and EPON (Ethernet Passive Optical Network ), and the rate of each PON generation is evolving continuously. Taking GPON as an example, ITU (International Telecommunication Union, international telecommunications union) standards specify that the rate evolution of PON between adjacent generations is not less than 4 times.
However, since the new-generation PON (high-speed PON) needs to be compatible with the existing ODN (Optical Distribution Network ), meaning that the power budget of the new-generation PON needs to be the same as that of the previous-generation PON, and as the transmission rate increases, both the transmission power and the detection sensitivity decrease, the power budget of the high-speed PON system is low, and it is difficult to be compatible with the existing network ODN.
Disclosure of Invention
The invention aims to provide a passive optical network system, a signal transmission method, a signal transmission device and a terminal, which solve the problems that the power budget of a high-speed PON is low and the existing network ODN is difficult to be compatible.
To achieve the above object, an embodiment of the present invention provides a passive optical network system, including an OLT (optical line terminal ) and an ONU (Optical Network Unit, optical network unit), further including:
a spatial channel multiplexer, a spatial channel demultiplexer, and at least one power divider;
the spatial channel multiplexer is connected with the OLT through a single-mode fiber, the spatial channel multiplexer is connected with the spatial channel demultiplexer through a space division multiplexing optical fiber, and the spatial channel demultiplexer is connected with at least one power divider through the single-mode fiber.
Optionally, the space division multiplexing optical fiber includes at least one spatial channel.
Optionally, the spatial channels in the spatial multiplexing optical fiber are orthogonal to each other.
Optionally, the first signal sent by the OLT is transmitted to the spatial channel multiplexer through a spatial channel in the single-mode fiber;
the space channel multiplexer obtains a first multiplexing signal according to the first signal, and transmits the first multiplexing signal to the space channel demultiplexer through the space division multiplexing optical fiber;
the spatial channel demultiplexer demultiplexes the first multiplexed signal to obtain at least one second signal, and transmits the second signal to the power divider through the single mode fiber, and the power divider transmits the second signal to the ONU.
Optionally, after the third signal sent by the ONU is transmitted to the power divider, the power divider transmits the third signal to the spatial channel demultiplexer through the single-mode fiber;
the space channel demultiplexer obtains a second multiplexing signal according to the third signal, and transmits the second multiplexing signal to the space channel multiplexer through the space division multiplexing optical fiber;
and the spatial channel multiplexer demultiplexes the second multiplexing signal to obtain at least one fourth signal, and transmits the fourth signal to the OLT through the spatial channel in the single-mode fiber.
Optionally, the spatial channel multiplexer and the spatial channel demultiplexer are both multiple-input multiple-output passive devices.
Optionally, the OLT is configured to:
determining a power budget for the spatial channels;
and adjusting the transmission rate of the space channel according to the power budget.
Optionally, the adjusting the transmission rate of the spatial channel according to the power budget includes:
determining a first power budget interval to which the power budget belongs in preconfiguration information, wherein the preconfiguration information comprises a corresponding relation between the transmission rate and the power budget interval, and the power budget interval comprises the first power budget interval;
determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and adjusting the transmission rate of the space channel to the target transmission rate.
Optionally, the determining the target transmission rate according to the first transmission rate corresponding to the first power budget interval includes one of the following:
determining the first transmission rate as the target transmission rate;
a second transmission rate is determined as the target transmission rate, the second transmission rate being less than the first transmission rate.
To achieve the above object, an embodiment of the present invention provides a signal transmission method, applied to an optical line terminal OLT, including:
a first processing module for determining a power budget for a spatial channel over which the first signal is transmitted;
and the second processing module is used for adjusting the transmission rate of the space channel according to the power budget.
Optionally, the adjusting the transmission rate of the spatial channel according to the power budget includes:
determining a first power budget interval to which the power budget belongs in preconfiguration information, wherein the preconfiguration information comprises a corresponding relation between the transmission rate and the power budget interval, and the power budget interval comprises the first power budget interval;
determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and adjusting the transmission rate of the space channel to the target transmission rate.
Optionally, the determining the target transmission rate according to the first transmission rate corresponding to the first power budget interval includes one of the following:
determining the first transmission rate as the target transmission rate;
a second transmission rate is determined as the target transmission rate, the second transmission rate being less than the first transmission rate.
To achieve the above object, an embodiment of the present invention provides a signal transmission device, applied to an optical line terminal OLT, including:
a first processing module for determining a power budget for a spatial channel over which the first signal is transmitted;
and the second processing module is used for adjusting the transmission rate of the space channel according to the power budget.
Optionally, the second processing module includes:
a first processing unit, configured to determine a first power budget interval to which the power budget belongs in preconfiguration information, where the preconfiguration information includes a correspondence between the transmission rate and the power budget interval, and the power budget interval includes the first power budget interval;
the second processing unit is used for determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and the third processing unit is used for adjusting the transmission rate of the space channel to the target transmission rate.
Optionally, the second processing unit includes:
a first processing subunit configured to determine the first transmission rate as the target transmission rate;
and a second processing subunit configured to determine a second transmission rate as the target transmission rate, where the second transmission rate is less than the first transmission rate.
To achieve the above object, an embodiment of the present invention provides a terminal including a processor and a transceiver, wherein the processor is configured to:
determining a power budget for a spatial channel over which the first signal is transmitted;
and adjusting the transmission rate of the space channel according to the power budget.
Optionally, the processor is specifically configured to, when adjusting the transmission rate of the spatial channel according to the power budget:
determining a first power budget interval to which the power budget belongs in preconfiguration information, wherein the preconfiguration information comprises a corresponding relation between the transmission rate and the power budget interval, and the power budget interval comprises the first power budget interval;
determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and adjusting the transmission rate of the space channel to the target transmission rate.
Optionally, the processor is specifically configured to, when determining the target transmission rate according to the first transmission rate corresponding to the first power budget interval:
determining the first transmission rate as the target transmission rate;
a second transmission rate is determined as the target transmission rate, the second transmission rate being less than the first transmission rate.
To achieve the above object, an embodiment of the present invention provides a terminal including a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the processor, when executing the program or instructions, implements the signaling method as described above.
To achieve the above object, an embodiment of the present invention provides a readable storage medium having stored thereon a program or instructions which when executed by a processor realizes the steps in the signal transmission method as described above.
The technical scheme of the invention has the following beneficial effects:
the passive optical network system of the embodiment of the invention can realize space division multiplexing through the space channel multiplexer and the space channel demultiplexer, and the space channel demultiplexer can be connected with a plurality of power splitters through a single-mode optical fiber, so that signals can be transmitted to the ONU by utilizing the power splitters, and therefore, the power splitters of the scheme can hang the ONU with the same quantity as the ONU in the prior art by only realizing smaller light splitting ratio, thereby reducing power loss and improving power budget.
Drawings
Fig. 1 is a schematic diagram of a network architecture of a passive optical network system according to an embodiment of the present invention;
fig. 2 is a flowchart of a signal transmission method according to an embodiment of the present invention;
fig. 3 is a block diagram of a signal transmission device according to an embodiment of the present invention;
fig. 4 is a block diagram of a terminal according to an embodiment of the present invention;
fig. 5 is a block diagram of a terminal according to another embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
In addition, the terms "system" and "network" are often used interchangeably herein.
In the examples provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.
The prior art increases the power budget by adding an SOA (Semiconductor Optical Amplifier ) at the transmitting end and adopting a high-sensitivity PD (Photo-Diode) at the receiving end, resulting in higher system cost, and the scheme is difficult to expand the replication application to the next generation passive optical network (200 Gbit/s) due to the limited amplification capability of the SOA.
As shown in fig. 1, a passive optical network system according to an embodiment of the present invention includes an optical line terminal OLT and an optical network unit ONU, and further includes:
a spatial channel multiplexer, a spatial channel demultiplexer, and at least one power divider;
the spatial channel multiplexer is connected with the OLT through a single-mode fiber, the spatial channel multiplexer is connected with the spatial channel demultiplexer through a space division multiplexing optical fiber, and the spatial channel demultiplexer is connected with at least one power divider through the single-mode fiber.
In the passive optical network system, the OLT and the ONU are terminals supporting space division multiplexing and time division multiplexing signal transmission and reception. The OLT supports an uplink time division multiplexing mechanism, and a plurality of transceivers are arranged in the OLT; the spatial channel multiplexer and the spatial channel demultiplexer may be implemented based on a pull-cone type, a side polishing type, a 3D femtosecond laser direct writing waveguide type, MPLC (muli-plan light conversion, multi-plane optical conversion) and the like.
In this embodiment, space division multiplexing can be achieved through the space channel multiplexer, the space division multiplexing optical fiber and the space channel demultiplexer, and the space channel demultiplexer can be connected with a plurality of power splitters through a single-mode optical fiber, so that signals can be transmitted to the ONUs by using the power splitters, and time division multiplexing is achieved.
It should be noted that, in the case of hooking the same number of users (i.e., OLT), compared with the existing passive optical network structure, the power budget of the passive optical network system in the embodiment of the present invention may be improved by 3×log2 (n/m); wherein m represents the number of spatial channels, m>0; n represents the number of users, n ≥ m. For example, when n=64, the existing passive optical network requires a power divider to achieve a splitting ratio of 1:64, and the inherent power loss is 18dB; in the passive optical network system of the embodiment of the invention, if m=8, the 64 users hung down can be realized only by realizing the 1:8 splitting ratio of the power divider, and the power loss is only 9dB, so that the power budget of 9dB can be improved, the power budget is greatly improved, and the system is compatible with the ODN of the realization network.
Optionally, the space division multiplexing optical fiber includes at least one spatial channel.
It should be noted that, the space division multiplexing optical fiber supports a plurality of spatial channels, and the plurality of spatial channels may be independently transmitted. In practical application, the space division multiplexing optical fiber supporting the corresponding space channel number can be designed and realized according to scene requirements.
Optionally, the spatial channels in the spatial multiplexing optical fiber are orthogonal to each other.
It should be noted that, since the spatial channels in the space division multiplexing optical fiber are orthogonal to each other, it is possible to ensure that the spatial channels do not interfere with each other in transmission.
Optionally, the first signal sent by the OLT is transmitted to the spatial channel multiplexer through a spatial channel in the single-mode fiber;
the space channel multiplexer obtains a first multiplexing signal according to the first signal, and transmits the first multiplexing signal to the space channel demultiplexer through the space division multiplexing optical fiber;
the spatial channel demultiplexer demultiplexes the first multiplexed signal to obtain at least one second signal, and transmits the second signal to the power divider through the single mode fiber, and the power divider transmits the second signal to the ONU.
In the transmission process, the OLT transmits signals to the spatial channels in the space division multiplexing optical fibers through the spatial channel multiplexer, then the signals reach the spatial channel demultiplexer after being transmitted through the space division multiplexing optical fibers, the spatial channel demultiplexer demultiplexes the signals in the space division multiplexing optical fibers into signals in single-mode optical fibers, the signals are transmitted through corresponding single-mode optical fibers, and then the signals are transmitted to the ONUs through the single-mode power splitters, and the ONUs can receive the signals.
In this embodiment, the signal sent by the OLT is transmitted through the spatial channel multiplexer and the spatial channel demultiplexer, so that spatial multiplexing is implemented, and the spatial channel demultiplexer may be connected to a plurality of power splitters through a single mode fiber, so that the signal may be transmitted to the ONU by using the power splitters. Therefore, the power divider of the scheme can hang down the ONU with the same number as the ONU in the traditional technology only by realizing smaller light splitting ratio, thereby reducing the power loss and improving the power budget.
Optionally, after the third signal sent by the ONU is transmitted to the power divider, the power divider transmits the third signal to the spatial channel demultiplexer through the single-mode fiber;
the space channel demultiplexer obtains a second multiplexing signal according to the third signal, and transmits the second multiplexing signal to the space channel multiplexer through the space division multiplexing optical fiber;
and the spatial channel multiplexer demultiplexes the second multiplexing signal to obtain at least one fourth signal, and transmits the fourth signal to the OLT through the spatial channel in the single-mode fiber.
In the above transmission process, the ONU transmitting signal may reach the spatial channel demultiplexer through the power divider and the single-mode fiber, the spatial channel demultiplexer multiplexes the signal to the spatial channel in the spatial multiplexing fiber, then reaches the spatial channel multiplexer after the signal is transmitted through the spatial multiplexing fiber, the spatial channel multiplexer demultiplexes the signal in the spatial multiplexing fiber into the signal in the single-mode fiber, and reaches the OLT through the corresponding single-mode fiber transmission, and the OLT may receive the signal.
It can be appreciated that for a spatial channel multiplexer, it can multiplex the downstream signal and de-multiplex the upstream signal; the spatial channel demultiplexer demultiplexes the downstream signal and multiplexes the upstream signal.
Optionally, the spatial channel multiplexer and the spatial channel demultiplexer are both multiple-input multiple-output passive devices.
It should be noted that, because the spatial channel multiplexer and the spatial channel demultiplexer are all multiple-input multiple-output passive devices, the signal has no insertion loss in the transmission process of the spatial channel multiplexer and the spatial channel demultiplexer, so that the power loss can be reduced, and the power budget is improved greatly.
The spatial channel multiplexer is used for converting the spatial channels in the single-mode fiber into corresponding spatial channels in the space division multiplexing fiber, and the spatial channels are orthogonal to each other and do not interfere with each other in transmission. The spatial channel demultiplexer is used to demultiplex the corresponding spatial channels in the space division multiplexing optical fiber into the spatial channels in the single mode optical fiber.
Optionally, the OLT is configured to:
determining a power budget for the spatial channels;
and adjusting the transmission rate of the space channel according to the power budget.
In this embodiment, the OLT may dynamically adjust the transmission rate of the spatial channel, thereby implementing adjustment of the power budget of the spatial channel, and avoiding error code generation. For example, a control module may be disposed inside the OLT, and the control module may dynamically monitor the transmit power and the receive power of each spatial channel, and may obtain the power budget of the spatial channel according to the transmit power and the receive power, so as to adaptively adjust the transmit rates of different spatial channels according to a corresponding mechanism (i.e., a mechanism that adjusts the transmit rates of the spatial channels according to the power budget).
As an optional embodiment of the present invention, the adjusting the transmission rate of the spatial channel according to the power budget may specifically include the following steps:
determining a first power budget interval to which the power budget belongs in preconfiguration information, wherein the preconfiguration information comprises a corresponding relation between the transmission rate and the power budget interval, and the power budget interval comprises the first power budget interval;
determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and adjusting the transmission rate of the space channel to the target transmission rate.
In this embodiment, different power budget intervals may be set for different transmission rates. In this way, the target transmission rate can be determined by judging which power budget interval the power budget of the spatial channel is located, and the transmission rate of the spatial channel is further adjusted to the target transmission rate.
As an optional embodiment of the present invention, the determining the target transmission rate according to the first transmission rate corresponding to the first power budget interval includes one of the following:
mode one: determining the first transmission rate as the target transmission rate;
mode two: a second transmission rate is determined as the target transmission rate, the second transmission rate being less than the first transmission rate.
That is, a first transmission rate corresponding to the first power budget section may be selected as the target transmission rate, and a rate lower than the first transmission rate may be selected as the target transmission rate, thereby improving the power budget of the spatial channels.
It should be noted that, the OLT in the embodiment of the present invention supports ranging for each ONU with respect to each spatial channel, and issues the ranging result to each ONU through the management channel. Here, the ONU and the OLT perform information interaction through the management channel.
According to the passive optical network system, space division multiplexing can be achieved through the space channel multiplexer and the space channel demultiplexer, the space channel demultiplexer can be connected with a plurality of power splitters through single-mode optical fibers, signals can be transmitted to the ONUs through the power splitters, and therefore the power splitters of the scheme can hang the ONUs in the same number as those in the conventional technology only by achieving smaller light splitting ratio, power loss is reduced, power budget is improved, and the passive optical network system can be compatible with the existing network ODN.
As shown in fig. 2, a signal transmission method according to an embodiment of the present invention is applied to an optical line terminal OLT, and includes:
step 201, determining a power budget for a spatial channel over which a first signal is transmitted.
For example, a control module may be disposed inside the OLT, and the control module may dynamically monitor the transmit power and the receive power of each spatial channel, and may obtain the power budget of the spatial channel according to the transmit power and the receive power.
And step 202, adjusting the transmission rate of the space channel according to the power budget.
In this embodiment, the OLT may adaptively adjust the transmission rates of different spatial channels according to a corresponding mechanism (i.e., a mechanism that adjusts the transmission rate of the spatial channels according to the power budget), thereby implementing adjustment of the power budget of the spatial channels, and avoiding error code generation.
Optionally, step 202 includes:
determining a first power budget interval to which the power budget belongs in preconfiguration information, wherein the preconfiguration information comprises a corresponding relation between the transmission rate and the power budget interval, and the power budget interval comprises the first power budget interval;
determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and adjusting the transmission rate of the space channel to the target transmission rate.
In this embodiment, different power budget intervals may be set for different transmission rates. In this way, the target transmission rate can be determined by judging which power budget interval the power budget of the spatial channel is located, and the transmission rate of the spatial channel is further adjusted to the target transmission rate.
As an alternative embodiment of the present invention, step 2022 may specifically include one of the following:
mode one: determining the first transmission rate as the target transmission rate;
mode two: a second transmission rate is determined as the target transmission rate, the second transmission rate being less than the first transmission rate.
That is, a first transmission rate corresponding to the first power budget section may be selected as the target transmission rate, and a rate lower than the first transmission rate may be selected as the target transmission rate, thereby improving the power budget of the spatial channels.
According to the signal transmission method, the OLT can adaptively adjust the transmission rates of different spatial channels according to the power budget of the spatial channels, so that the adjustment of the power budget of the spatial channels is realized, the power budget of the spatial channels is improved, and error codes are avoided.
As shown in fig. 3, a signal transmission device according to an embodiment of the present invention is applied to an optical line terminal OLT, and includes:
a first processing module 310 for determining a power budget for a spatial channel over which the first signal is transmitted;
a second processing module 320, configured to adjust a transmission rate of the spatial channel according to the power budget.
In this embodiment, different power budget intervals may be set for different transmission rates. In this way, the target transmission rate can be determined by judging which power budget interval the power budget of the spatial channel is located, and the transmission rate of the spatial channel is further adjusted to the target transmission rate.
Optionally, the second processing module 320 includes:
a first processing unit, configured to determine a first power budget interval to which the power budget belongs in preconfiguration information, where the preconfiguration information includes a correspondence between the transmission rate and the power budget interval, and the power budget interval includes the first power budget interval;
the second processing unit is used for determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and the third processing unit is used for adjusting the transmission rate of the space channel to the target transmission rate.
Optionally, the second processing unit includes:
a first processing subunit configured to determine the first transmission rate as the target transmission rate;
and a second processing subunit configured to determine a second transmission rate as the target transmission rate, where the second transmission rate is less than the first transmission rate.
It should be noted that, the signal transmission device provided in the embodiment of the present invention can implement all the method steps implemented in the embodiment of the signal transmission method applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the embodiment of the method are omitted herein.
As shown in fig. 4, a terminal 400 according to an embodiment of the present invention includes a processor 410 and a transceiver 420, where the processor 410 is configured to:
determining a power budget for a spatial channel over which the first signal is transmitted;
and adjusting the transmission rate of the space channel according to the power budget.
In this embodiment, different power budget intervals may be set for different transmission rates. In this way, the target transmission rate can be determined by judging which power budget interval the power budget of the spatial channel is located, and the transmission rate of the spatial channel is further adjusted to the target transmission rate.
Optionally, the processor 410 is specifically configured to, when adjusting the transmission rate of the spatial channels according to the power budget:
determining a first power budget interval to which the power budget belongs in preconfiguration information, wherein the preconfiguration information comprises a corresponding relation between the transmission rate and the power budget interval, and the power budget interval comprises the first power budget interval;
determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and adjusting the transmission rate of the space channel to the target transmission rate.
Optionally, the processor 410 is specifically configured to, when determining the target transmission rate according to the first transmission rate corresponding to the first power budget interval:
determining the first transmission rate as the target transmission rate;
a second transmission rate is determined as the target transmission rate, the second transmission rate being less than the first transmission rate.
It should be noted that, the above terminal provided by the embodiment of the present invention can implement all the method steps implemented by the signal transmission method embodiment applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.
A terminal according to another embodiment of the present invention, as shown in fig. 5, includes a transceiver 510, a processor 500, a memory 520, and a program or instructions stored on the memory 520 and executable on the processor 500; the processor 500 implements the signal transmission method applied to the terminal when executing the program or instructions.
The transceiver 510 is configured to receive and transmit data under the control of the processor 500.
Wherein in fig. 5, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 500 and various circuits of memory represented by memory 520, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 530 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.
The readable storage medium of the embodiment of the present invention stores a program or an instruction, which when executed by a processor, implements the steps in the signal transmission method described above, and can achieve the same technical effects, and is not described herein again for avoiding repetition. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It is further noted that the terminals described in this specification include, but are not limited to, smartphones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.
In an embodiment of the invention, the modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices.
Where a module may be implemented in software, taking into account the level of existing hardware technology, a module may be implemented in software, and one skilled in the art may, without regard to cost, build corresponding hardware circuitry, including conventional Very Large Scale Integration (VLSI) circuits or gate arrays, and existing semiconductors such as logic chips, transistors, or other discrete components, to achieve the corresponding functions. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
The exemplary embodiments described above are described with reference to the drawings, many different forms and embodiments are possible without departing from the spirit and teachings of the present invention, and therefore, the present invention should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. In the drawings, the size of the elements and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values includes the upper and lower limits of the range and any subranges therebetween.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (16)
1. A passive optical network system, comprising an optical line terminal OLT and an optical network unit ONU, characterized in that it further comprises:
a spatial channel multiplexer, a spatial channel demultiplexer, and at least one power divider;
the spatial channel multiplexer is connected with the OLT through a single-mode fiber, the spatial channel multiplexer is connected with the spatial channel demultiplexer through a space division multiplexing optical fiber, and the spatial channel demultiplexer is connected with at least one power divider through the single-mode fiber.
2. The passive optical network system of claim 1, wherein the spatial multiplexing optical fiber comprises at least one spatial channel.
3. The passive optical network system of claim 2, wherein the spatial channels in the space division multiplexing optical fiber are mutually orthogonal.
4. The passive optical network system according to claim 2, wherein the first signal sent by the OLT is transmitted to the spatial channel multiplexer through a spatial channel in the single-mode optical fiber;
the space channel multiplexer obtains a first multiplexing signal according to the first signal, and transmits the first multiplexing signal to the space channel demultiplexer through the space division multiplexing optical fiber;
the spatial channel demultiplexer demultiplexes the first multiplexed signal to obtain at least one second signal, and transmits the second signal to the power divider through the single mode fiber, and the power divider transmits the second signal to the ONU.
5. The passive optical network system according to claim 2, wherein after the third signal sent by the ONU is transmitted to the power divider, the power divider transmits the third signal to the spatial channel demultiplexer through the single-mode optical fiber;
the space channel demultiplexer obtains a second multiplexing signal according to the third signal, and transmits the second multiplexing signal to the space channel multiplexer through the space division multiplexing optical fiber;
and the spatial channel multiplexer demultiplexes the second multiplexing signal to obtain at least one fourth signal, and transmits the fourth signal to the OLT through the spatial channel in the single-mode fiber.
6. The passive optical network system of claim 1, wherein the spatial channel multiplexer and the spatial channel demultiplexer are both multiple-in multiple-out passive devices.
7. The passive optical network system according to claim 1, wherein the OLT is configured to:
determining a power budget for the spatial channels;
and adjusting the transmission rate of the space channel according to the power budget.
8. The passive optical network system of claim 7, wherein said adjusting the transmission rate of the spatial channels based on the power budget comprises:
determining a first power budget interval to which the power budget belongs in preconfiguration information, wherein the preconfiguration information comprises a corresponding relation between the transmission rate and the power budget interval, and the power budget interval comprises the first power budget interval;
determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and adjusting the transmission rate of the space channel to the target transmission rate.
9. The passive optical network system of claim 8, wherein the determining the target transmission rate according to the first transmission rate corresponding to the first power budget interval comprises one of:
determining the first transmission rate as the target transmission rate;
a second transmission rate is determined as the target transmission rate, the second transmission rate being less than the first transmission rate.
10. A signal transmission method applied to an optical line terminal OLT, comprising:
determining a power budget for a spatial channel over which the first signal is transmitted;
and adjusting the transmission rate of the space channel according to the power budget.
11. The method of claim 10, wherein adjusting the transmission rate of the spatial channels based on the power budget comprises:
determining a first power budget interval to which the power budget belongs in preconfiguration information, wherein the preconfiguration information comprises a corresponding relation between the transmission rate and the power budget interval, and the power budget interval comprises the first power budget interval;
determining a target transmission rate according to the first transmission rate corresponding to the first power budget interval;
and adjusting the transmission rate of the space channel to the target transmission rate.
12. The method of claim 11, wherein determining the target transmission rate from the first transmission rate corresponding to the first power budget interval comprises one of:
determining the first transmission rate as the target transmission rate;
a second transmission rate is determined as the target transmission rate, the second transmission rate being less than the first transmission rate.
13. A signal transmission device applied to an optical line terminal OLT, comprising:
a first processing module for determining a power budget for a spatial channel over which the first signal is transmitted;
and the second processing module is used for adjusting the transmission rate of the space channel according to the power budget.
14. A terminal, comprising: a transceiver and a processor; the processor is configured to:
determining a power budget for a spatial channel over which the first signal is transmitted;
and adjusting the transmission rate of the space channel according to the power budget.
15. A terminal, comprising: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; a signal transmission method as claimed in any one of claims 10 to 12 when said program or instructions are executed by said processor.
16. A readable storage medium having stored thereon a program or instructions which when executed by a processor performs the steps in the signal transmission method according to any of claims 10 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210836030.0A CN117439693A (en) | 2022-07-15 | 2022-07-15 | Passive optical network system, signal transmission method, device and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210836030.0A CN117439693A (en) | 2022-07-15 | 2022-07-15 | Passive optical network system, signal transmission method, device and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117439693A true CN117439693A (en) | 2024-01-23 |
Family
ID=89548540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210836030.0A Pending CN117439693A (en) | 2022-07-15 | 2022-07-15 | Passive optical network system, signal transmission method, device and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117439693A (en) |
-
2022
- 2022-07-15 CN CN202210836030.0A patent/CN117439693A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100913278B1 (en) | Passive optical network system and method of data transmission in the passive optical network | |
| US9497524B2 (en) | Interface and method for enabling interconnection of a host device and a small-formfactor pluggable module | |
| JPH08256115A (en) | Optical fiber network system | |
| US20050175343A1 (en) | System and apparatus for a carrier class WDM PON for increased split number and bandwidth | |
| JP4818815B2 (en) | Optical communication method, optical communication network system, master optical communication device, slave optical communication device | |
| CN101568046B (en) | Method for realizing coexistence of unsymmetrical 10GEPON and GEPON optical network terminals and system thereof | |
| US11689312B2 (en) | System and methods for coherent optical extension | |
| EP2645608A1 (en) | Optical line terminal, optical network unit and passive optical network system | |
| JP2018038026A (en) | Host substrate, optical receiver, optical transmitter, optical transceiver and method for mounting optical transceiver on host substrate | |
| US7639949B2 (en) | TDM PON and dynamic bandwidth allocation method thereof | |
| EP4040746A1 (en) | Passive optical network-based communication method, related device, and system | |
| JP2016149609A (en) | Access control system, access control method, master station device, and slave station device | |
| EP4029164A1 (en) | Port replicator | |
| CN101964926B (en) | Light signal transmission method and system | |
| CN117439693A (en) | Passive optical network system, signal transmission method, device and terminal | |
| KR200386964Y1 (en) | The configuration Method of optical access network using single wavelength Multiplexer | |
| CN101374022A (en) | Novel wired network system | |
| JP2002290379A (en) | Signal transmission system | |
| JP2006352350A (en) | Station-side terminal apparatus and pon system | |
| KR100602951B1 (en) | Wdm pon system appointed an optical circulator | |
| EP4047835A1 (en) | Automatic wavelength setting system for optical communication device | |
| KR20040001028A (en) | Optical access network architecture | |
| KR20220050558A (en) | Optical line terminal | |
| KR20100096357A (en) | System for providing high speed internet service using passive optical network through existing mmf optical cables in apartment complexes | |
| CN118158583A (en) | Optical line terminal, optical network unit, extension head and networking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |