CN102075825A - Uplink bandwidth management method and device in optical communication system - Google Patents
Uplink bandwidth management method and device in optical communication system Download PDFInfo
- Publication number
- CN102075825A CN102075825A CN2011100349019A CN201110034901A CN102075825A CN 102075825 A CN102075825 A CN 102075825A CN 2011100349019 A CN2011100349019 A CN 2011100349019A CN 201110034901 A CN201110034901 A CN 201110034901A CN 102075825 A CN102075825 A CN 102075825A
- Authority
- CN
- China
- Prior art keywords
- onu
- bandwidth
- allocation cycle
- bandwidth allocation
- frames
- 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
Images
Landscapes
- Small-Scale Networks (AREA)
Abstract
The embodiment of the invention provides an uplink bandwidth management method and an uplink bandwidth management device in an optical communication system. The method mainly comprises the following steps of: determining the transmission time of a plurality of continuous frames as a bandwidth allocation period; and allocating available uplink bandwidth resource information in the bandwidth allocation period to each optical network unit (ONU) of a client. By taking the transmission time of the plurality of the continuous frames as the bandwidth allocation period, the method can greatly reduce the number of Burst gaps, between transmission containers (TCONT), allocated to each ONU in the same time range compared with performing the bandwidth allocation by taking a single frame as a unit in the prior art, so that the utilization rate of the uplink bandwidth resource of the optical communication system is improved effectively.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the management method and the device of the upstream bandwidth in a kind of optical communication system.
Background technology
GPON (Gigabit capability Passive Optical Network, Gigabit Passive Optical Network) system is generally by OLT (the Optical Line Termination of local side, optical line terminal) and the ONU of user side (Optical Network Unit, optical network unit) form.The quantity ratio of the OLT of local side and user side ONU is 1: N, the two realizes converging of user side ONU by optical splitter.
In the GPON system, local side OLT is managed the authorization conditions of each time slot ONU, realizes the upstream bandwidth management of ONU.The upstream bandwidth management function of ONU in the specific implementation GPON system be DBA (Dynamic Bandwidth Assignment among the OLT, Dynamic Bandwidth Allocation) module, the DBA module not only provides the multiple business bandwidth types to operator, and fully effectively utilize upstream bandwidth in operator, provide for the user in the quality of service of high-quality and brought into play important effect.
The method that a kind of DBA module of the prior art is carried out the upstream bandwidth management of GPON system is: the DBA module is the management that unit carries out the upstream bandwidth of each ONU with the single frames.The DBA module is in the transmission time of a single frames, such as, GTC (GPON Transmission Convergence in GPON agreement regulation, the GPON Transmission Convergence) frame is in the 125us, distribute the timeslice that staggers mutually for each ONU, this timeslice is called TCONT (Transmission Containers, transmission container), and above-mentioned TCONT is equivalent to the upstream bandwidth that the DBA module is distributed to ONU.Each ONU utilizes the DBA module to carry out transmitting uplink data to the TCONT of its distribution.
In realizing process of the present invention, the inventor finds DBA module of the prior art to carry out the method for upstream bandwidth management of GPON system, and there are the following problems at least: this method is that the transmission time with a single frames is that unit gives each ONU distribution T CONT, owing to have a time interval between the TCONT that each ONU occupied, in the transmission time of each single frames, all have certain time interval.The above-mentioned time interval is not occupied by any ONU, is a kind of waste to the uplink bandwidth resource of GPON system.Therefore, this method is owing to exist many above-mentioned time intervals, causes the utilance of uplink bandwidth resource of GPON system not high.
Summary of the invention
Embodiments of the invention provide the management method and the device of the upstream bandwidth in a kind of optical communication system, with the utilance of the uplink bandwidth resource that improves optical communication system.
The management method of the upstream bandwidth in a kind of optical communication system is characterized in that, comprising:
Obtain the uplink bandwidth resource demand information of a plurality of optical network unit ONU, determine the current bandwidth assignment period of described upstream bandwidth demand information correspondence, comprise a plurality of frames in the described bandwidth allocation cycle;
In described current bandwidth assignment period, be respectively described a plurality of ONU and distribute transmission container TCONT.
The management method of the upstream bandwidth in a kind of optical communication system comprises:
The transmission time of continuous a plurality of frames is defined as bandwidth allocation cycle;
Available uplink bandwidth resource information distribution in the described bandwidth allocation cycle is given each optical network unit ONU of user side.
The management devices of the upstream bandwidth in a kind of optical communication system comprises:
The bandwidth allocation cycle determination module is used for the transmission time of continuous a plurality of frames is defined as bandwidth allocation cycle.
The uplink bandwidth resource distribution module is used for each optical network unit ONU to user side of the available uplink bandwidth resource information distribution in the determined bandwidth allocation cycle of described bandwidth allocation cycle determination module.
The technical scheme that is provided by the embodiment of the invention described above as can be seen, the embodiment of the invention by with transmission time of continuous a plurality of frames as bandwidth allocation cycle, with prior art is that unit carries out allocated bandwidth and compares with the single frames, in identical time range, can significantly reduce the Burst gap quantity between the TCONT that distributes to each ONU, thereby improve the utilance of the uplink bandwidth resource of optical communication system effectively.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process chart of the management method of the upstream bandwidth in a kind of GPON system that proposes of the embodiment of the invention one;
Fig. 2 is the process chart of the management method of the upstream bandwidth in a kind of GPON system that proposes of the embodiment of the invention two
A kind of DBA module that Fig. 3 proposes for the embodiment of the invention two distributes the schematic diagram of a TCONT respectively for 4 ONU;
Fig. 4 is the concrete structure figure of the management devices of the upstream bandwidth in a kind of optical communication system of proposing of the embodiment of the invention three.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
For ease of understanding, be that example is further explained explanation below in conjunction with accompanying drawing with several specific embodiments, and each embodiment does not constitute the qualification to the embodiment of the invention to the embodiment of the invention.
The embodiment of the invention is applicable to GPON, EPON optical communication networks such as (Ethernet Passive Optical Network, ethernet passive optical networks), is that example illustrates the embodiment of the invention below with GPON.
Embodiment one
The handling process of the management method of the upstream bandwidth in a kind of GPON system that this embodiment provides comprises following treatment step as shown in Figure 1:
The sum of the needed uplink bandwidth resource that reports according to a plurality of ONU and the available uplink bandwidth resource information in the transmission time of a single frames are determined the current bandwidth assignment period, described before bandwidth allocation cycle be the integral multiple in the transmission time of a single frames.
A pairing time period of bandwidth allocation cycle is divided into a plurality of certain hour TCONT at interval that have, described a plurality of TCONT are distributed to each ONU.
When an ONU correspondence during a plurality of type of service, distribute a plurality of TCONT for described ONU, each TCONT is the type of service of corresponding described ONU respectively.
This embodiment is defined as bandwidth allocation cycle by the integral multiple with transmission time of a single frames, with prior art is that unit carries out allocated bandwidth and compares with the single frames, in identical time range, can significantly reduce the Burst gap quantity between the TCONT that distributes to each ONU, thereby improve the utilance of the uplink bandwidth resource of GPON system effectively.
Embodiment two
The handling process of the management method of the upstream bandwidth in a kind of GPON system that this embodiment proposes comprises following treatment step as shown in Figure 2:
DBA module among step 21, the OLT is defined as bandwidth allocation cycle with the transmission time of continuous a plurality of frames, is the uplink bandwidth resource management that unit carries out the GPON system with above-mentioned bandwidth allocation cycle.
DBA module among the OLT determines that according to actual conditions the transmission time with continuous a plurality of frames is the uplink bandwidth resource management that unit carries out the GPON system, transmission time of above-mentioned continuous a plurality of frames is defined as the bandwidth allocation cycle of DBA module.
The bandwidth allocation cycle of above-mentioned DBA module is the integral multiple in the transmission time of a single frames (such as the GTC frame), can be configured by software.Such as, being configured to 4, the transmission time of 4 then continuous GTC frames is defined as the bandwidth allocation cycle of DBA module.
In this embodiment, available uplink bandwidth resource information in the bandwidth allocation cycle was represented with a pairing time period of bandwidth allocation cycle, the starting point of this time period is the original position in transmission time of first frame of above-mentioned a plurality of frames, and end point is the end position in transmission time of last frame of above-mentioned a plurality of frames.
Above-mentioned DBA module is divided into a plurality of certain hour TCONT at interval that have with a pairing time period of bandwidth allocation cycle, more above-mentioned a plurality of TCONT is distributed to each ONU.Then, the DBA module will send to each ONU to the interior TCONT information of a bandwidth allocation cycle that each ONU distributes.
When an ONU correspondence during a plurality of type of service, distribute a plurality of TCONT can for this ONU, each TCONT can be respectively to a type of service that should ONU, the bandwidth resources of each type of service of this ONU can be added up respectively like this.Above-mentioned a plurality of TCONT can also have certain priority, and the TCONT of high priority is equivalent to fixed-bandwidth, will preferentially guarantee in actual applications.
The relevant information that above-mentioned DBA module can be distributed according to the upstream bandwidth of the GPON system that collects is divided into a pairing time period of bandwidth allocation cycle a plurality of TCONT and distributes to each ONU, and above-mentioned relevant information mainly comprises: the information of the needed uplink bandwidth resource that each ONU reports, the traffic type information of each ONU and the available uplink bandwidth resource information that bandwidth allocation cycle is interior.Such as, the needed uplink bandwidth resource that ONU1 reports is more than ONU2, and the type of service of ONU1 is more important business such as language conversation, and then the TCONT that distributes to ONU1 is bigger than the TCONT that ONU2 distributes.
The DBA module can not be subjected to the restriction of the blanking time between each frame in the bandwidth allocation cycle when a pairing time period of bandwidth allocation cycle is distributed to each ONU, can distribute a TCONT who strides frame to give an ONU.
In actual applications, can convert above-mentioned TCONT to byte number, will send to each ONU together to TCONT and the corresponding byte number that each ONU distributes according to the higher uplink bit rate of system.
Such as, be that the GPON system of 1.24416Gbps is an example with up transmission rate, the transmission time of each frame is 125us.The quantity of above-mentioned a plurality of frames is 4, and then above-mentioned bandwidth allocation cycle is the transmission time of 4 frames, is specially: 4 * 125us=500us, and the byte number of above-mentioned bandwidth allocation cycle correspondence is:
If the quantity of ONU is 4, the schematic diagram that the DBA module that this embodiment provides is distributed a TCONT respectively to 4 ONU as shown in Figure 3, in Fig. 3, distribute TCONT:BM0, BM1, BM2 and a BM3 respectively for 4 ONU, a time interval (Burst gap) is arranged between each TCONT, always have 4 Burst gap in a bandwidth allocation cycle (500us), above-mentioned Burst gap is not taken by each ONU, is a kind of waste of uplink bandwidth resource.In the prior art, transmission time with a single frames is that unit gives each ONU distribution T CONT, if distribute a TCONT respectively still for equally 4 ONU, then in the transmission time of a single frames (125us), always have 4 Burst gap, in 500us, always have 4 * 4=16 Burst gap.Therefore, in a bandwidth allocation cycle (500us), reduced by 12 Burst gap, thereby improved the utilance of upstream bandwidth.
Suppose that the DBA module is 0us-100us to the TCONT1 that ONU1 distributes, then
The byte number of this TCONT correspondence is: 0bt-15552bt.The DBA module can send to ONU1 together with the temporal information of the 0us-100us of above-mentioned TCONT1 correspondence and the byte number information of 0bt-15552bt.
The DBA module can dynamically be adjusted the TCONT that distributes to each ONU according to the service traffics demand of each ONU and the service bandwidth configuration of each ONU, improves the utilance of the uplink bandwidth resource of GPON system effectively.
Optionally, the handling process of the management method of the upstream bandwidth in the above-mentioned GPON system can also comprise:
Carry out the frame synchronization process operation between step 23, DBA module and each ONU.
After the DBA module has been determined the concrete quantity of above-mentioned a plurality of frames, carry out the frame synchronization operation between needs and each ONU.The DBA module is by PLOAM (Physical Layer Operations, Administration and Maintenance, physical layer operations administers and maintains) passage or OMCI (ONU Management and Control Interface, ONU management and control interface) passage, send the frame sync message of the information of carrying described bandwidth allocation cycle to each ONU, the information of described bandwidth allocation cycle comprises: the quantity of described continuous a plurality of frames, the sign of the end frame of the sign of the start frame of described a plurality of frames and position and described a plurality of frames and the frame sync message of position.
After each ONU receives above-mentioned frame sync message, obtain the information of the above-mentioned bandwidth allocation cycle that carries in the frame sync message, know that the DBA module is the resource management that unit carries out upstream bandwidth with above-mentioned bandwidth allocation cycle, and know the concrete dividing mode of above-mentioned a plurality of frames.The sign of above-mentioned start frame and end frame and position can realize that above-mentioned super frame counter is used for by counting each up frame of GPON system being identified with the super frame counter of G984.3 agreement regulation.
Each ONU returns the response message of above-mentioned frame sync message to the DBA module, and the DBA module receives this response message, thereby has realized frame synchronization between DBA module and each ONU.
In actual applications, above-mentioned steps 23 can be before above-mentioned steps 22, simultaneously or finish afterwards.
Finish and the DBA module between frame synchronization process after, each ONU receives the TCONT information in the bandwidth allocation cycle that the DBA module sends.So each ONU is a unit with a bandwidth allocation cycle, distributing within the TCONT of oneself, send upstream data according to the uplink speed of system to the OLT of local side.
This embodiment by with transmission time of continuous a plurality of frames as bandwidth allocation cycle, with prior art is that unit carries out allocated bandwidth and compares with the single frames, in identical time range, can significantly reduce the Burst gap quantity between the TCONT that distributes to each ONU, thereby improve the utilance of the uplink bandwidth resource of GPON system effectively, reduce operating cost of operator.
This embodiment can distribute a TCONT who strides frame to ONU, can make ONU realize striding the continuous data transmission of frame.
Embodiment three
This embodiment provides the management devices of the upstream bandwidth in a kind of optical communication system, and its concrete structure comprises following module as shown in Figure 4:
Bandwidth allocation cycle determination module 41 is used for the transmission time of continuous a plurality of frames is defined as bandwidth allocation cycle.
Uplink bandwidth resource distribution module 42 is used for each ONU to user side of the available uplink bandwidth resource information distribution in the determined bandwidth allocation cycle of described bandwidth allocation cycle determination module.Available uplink bandwidth resource information in the described bandwidth allocation cycle comprises the pairing time period of described bandwidth allocation cycle, the starting point of this time period is the original position in transmission time of first frame of described continuous a plurality of frames, and end point is the end position in transmission time of last frame of described continuous a plurality of frames.
Optionally, described device can also comprise:
Frame synchronization module 43, be used for sending to each ONU the frame sync message of the information of carrying described bandwidth allocation cycle, the information of described bandwidth allocation cycle comprises: the sign of the start frame of the quantity of described a plurality of frames continuously, described a plurality of frames continuously and the sign of the end frame of position and described a plurality of frames and the frame sync message of position; Receive the response message of the described frame sync message that each ONU returns, and carry out frame synchronization between each ONU.
Optionally, described uplink bandwidth resource distribution module 42 comprises:
Information gathering module 421 is used to collect the information of the needed uplink bandwidth resource that each ONU reports, traffic type information and the length information of described pairing time period of bandwidth allocation cycle of each ONU;
Timeslice distribution module 422, be used for the information collected according to described information gathering module 321, the pairing time period of described bandwidth allocation cycle is divided into a plurality of timeslices that have the certain hour interval, described a plurality of timeslices are distributed to each optical network unit.
Distribute one or more timeslice for an ONU, when distributing a plurality of timeslice for an ONU, the continuous or dispersion of described a plurality of timeslices.
In actual applications, can convert above-mentioned TCONT to byte number, will send to each ONU together to TCONT and the corresponding byte number that each ONU distributes according to the higher uplink bit rate of system.
Such as, be that the GPON system of 1.24416Gbps is an example with up transmission rate, the transmission time of each frame is 125us.The quantity of above-mentioned a plurality of frames is 4, and then above-mentioned bandwidth allocation cycle is the transmission time of 4 frames, is specially: 4 * 125us=500us, and the byte number of above-mentioned bandwidth allocation cycle correspondence is:
Suppose that the DBA module is 0us-100us to the TCONT1 that ONU1 distributes, then
The byte number of this TCONT correspondence is: 0bt-15552bt.The DBA module can send to ONU1 together with the temporal information of the 0us-100us of above-mentioned TCONT1 correspondence and the byte number information of 0bt-15552bt.
The management devices of the upstream bandwidth in the above-mentioned optical communication system is arranged in the DBA module of OLT of local side, can adopt FPGA (Field Programmable Gate Array, field programmable gate array) or ASIC (Application-Specific Integrated Circuit, application-specific integrated circuit (ASIC)) realize.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
In sum, the embodiment of the invention by with transmission time of continuous a plurality of frames as bandwidth allocation cycle, with prior art is that unit carries out allocated bandwidth and compares with the single frames, in identical time range, can significantly reduce the Burst gap quantity between the TCONT that distributes to each ONU, thereby improve the utilance of the uplink bandwidth resource of GPON system effectively, reduce operating cost of operator.
The embodiment of the invention can be distributed a TCONT who strides frame to ONU, can make ONU realize striding the continuous data transmission of frame.
The embodiment of the invention is according to the service traffics demand of each ONU and the service bandwidth configuration of each ONU, the TCONT that distributes to each ONU is dynamically adjusted, can make in operator and fully effectively utilize upstream bandwidth, satisfying the user provides personalized allocated bandwidth needs.
After the bandwidth availability ratio of GPON system improved, newly-increased bandwidth used for newly-increased ONU, thereby increased the number of users of every GPON port.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. the management method of the upstream bandwidth in the optical communication system is characterized in that, comprising:
Obtain the uplink bandwidth resource demand information of a plurality of optical network unit ONU, determine the current bandwidth assignment period of described upstream bandwidth demand information correspondence, comprise a plurality of frames in the described bandwidth allocation cycle;
In described current bandwidth assignment period, be respectively described a plurality of ONU and distribute transmission container TCONT.
2. the management method of the upstream bandwidth in the optical communication system according to claim 1 is characterized in that, the described current bandwidth assignment period of determining described upstream bandwidth demand information correspondence comprises a plurality of frames in the described bandwidth allocation cycle, comprising:
The sum of the needed uplink bandwidth resource that reports according to a plurality of ONU and the available uplink bandwidth resource information in the transmission time of a single frames are determined the current bandwidth assignment period, described before bandwidth allocation cycle be the integral multiple in the transmission time of a single frames.
3. the management method of the upstream bandwidth in the optical communication system according to claim 1 and 2 is characterized in that, describedly is respectively described a plurality of ONU distributes transmission container TCONT to comprise in described current bandwidth assignment period:
A pairing time period of bandwidth allocation cycle is divided into a plurality of certain hour TCONT at interval that have, described a plurality of TCONT are distributed to each ONU.
4. the management method of the upstream bandwidth in the optical communication system according to claim 3 is characterized in that, describedly described a plurality of TCONT are distributed to each ONU comprises:
When an ONU correspondence during a plurality of type of service, distribute a plurality of TCONT for described ONU, each TCONT is the type of service of corresponding described ONU respectively.
5. the management method of the upstream bandwidth in the optical communication system is characterized in that, comprising:
The transmission time of continuous a plurality of frames is defined as bandwidth allocation cycle;
Available uplink bandwidth resource information distribution in the described bandwidth allocation cycle is given each optical network unit ONU of user side.
6. the management method of the upstream bandwidth in the optical communication system according to claim 5 is characterized in that, described method also comprises:
Send the frame sync message of the information of carrying described bandwidth allocation cycle to each ONU, the information of described bandwidth allocation cycle comprises: the sign of the end frame of the sign of the start frame of the quantity of described continuous a plurality of frames, described continuous a plurality of frames and position and described continuous a plurality of frames and the frame sync message of position;
Receive the response message of the described frame sync message that each ONU returns, and carry out frame synchronization between each ONU.
7. the management method of the upstream bandwidth in the optical communication system according to claim 5 is characterized in that, describedly comprises to each ONU of user side the available uplink bandwidth resource information distribution in the described bandwidth allocation cycle:
Available uplink bandwidth resource information in the described bandwidth allocation cycle comprises: the pairing time period of described bandwidth allocation cycle, the starting point of this time period is the original position in transmission time of first frame of described continuous a plurality of frames, and end point is the end position in transmission time of last frame of described continuous a plurality of frames;
The pairing time period of described bandwidth allocation cycle is divided into a plurality of timeslices that have the certain hour interval, described a plurality of timeslices are distributed to each ONU.
8. the management devices of the upstream bandwidth in the optical communication system is characterized in that, comprising:
The bandwidth allocation cycle determination module is used for the transmission time of continuous a plurality of frames is defined as bandwidth allocation cycle.
The uplink bandwidth resource distribution module is used for each optical network unit ONU to user side of the available uplink bandwidth resource information distribution in the determined bandwidth allocation cycle of described bandwidth allocation cycle determination module.
9. the management devices of the upstream bandwidth in the optical communication system according to claim 8 is characterized in that, described device also comprises:
Frame synchronization module, be used for sending to each ONU the frame sync message of the information of carrying described bandwidth allocation cycle, the information of described bandwidth allocation cycle comprises: the sign of the end frame of the sign of the start frame of the quantity of described continuous a plurality of frames, described continuous a plurality of frames and position and described continuous a plurality of frames and the frame sync message of position; Receive the response message of the described frame sync message that each ONU returns, and carry out frame synchronization between each ONU.
10. according to Claim 8 or the management devices of the upstream bandwidth in the 9 described optical communication systems, it is characterized in that described uplink bandwidth resource distribution module comprises:
The information gathering module is used to collect the information of the needed uplink bandwidth resource that each ONU reports, traffic type information and the length information of described pairing time period of bandwidth allocation cycle of each ONU;
The timeslice distribution module is used for according to the collected information of described information gathering module, the pairing time period of described bandwidth allocation cycle is divided into have certain hour a plurality of timeslices at interval, and described a plurality of timeslices are distributed to each ONU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100349019A CN102075825A (en) | 2011-01-27 | 2011-01-27 | Uplink bandwidth management method and device in optical communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100349019A CN102075825A (en) | 2011-01-27 | 2011-01-27 | Uplink bandwidth management method and device in optical communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102075825A true CN102075825A (en) | 2011-05-25 |
Family
ID=44034142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100349019A Pending CN102075825A (en) | 2011-01-27 | 2011-01-27 | Uplink bandwidth management method and device in optical communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102075825A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301258A (en) * | 2014-09-18 | 2015-01-21 | 南京邮电大学 | Uplink wavelength and bandwidth allocation method in TWDM PON system |
| US9042407B2 (en) | 2011-09-06 | 2015-05-26 | Huawei Technologies Co., Ltd. | Delivered-bandwidth adjustment method and module, and dynamic bandwidth assignment device |
| CN112821947A (en) * | 2019-11-18 | 2021-05-18 | Oppo广东移动通信有限公司 | Light fidelity LiFi communication control method, device, equipment and medium of electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068159A (en) * | 2007-06-21 | 2007-11-07 | 中兴通讯股份有限公司 | Ascending bandwidth authorizing method for Gilbert passive light network |
| CN101399758A (en) * | 2007-09-24 | 2009-04-01 | 中兴通讯股份有限公司 | Uplink bandwidth management method for Giga passive optical network |
| CN101577843A (en) * | 2008-05-08 | 2009-11-11 | 华为技术有限公司 | Method, device and system for processing multiframe |
-
2011
- 2011-01-27 CN CN2011100349019A patent/CN102075825A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068159A (en) * | 2007-06-21 | 2007-11-07 | 中兴通讯股份有限公司 | Ascending bandwidth authorizing method for Gilbert passive light network |
| CN101399758A (en) * | 2007-09-24 | 2009-04-01 | 中兴通讯股份有限公司 | Uplink bandwidth management method for Giga passive optical network |
| CN101577843A (en) * | 2008-05-08 | 2009-11-11 | 华为技术有限公司 | Method, device and system for processing multiframe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9042407B2 (en) | 2011-09-06 | 2015-05-26 | Huawei Technologies Co., Ltd. | Delivered-bandwidth adjustment method and module, and dynamic bandwidth assignment device |
| CN104301258A (en) * | 2014-09-18 | 2015-01-21 | 南京邮电大学 | Uplink wavelength and bandwidth allocation method in TWDM PON system |
| CN104301258B (en) * | 2014-09-18 | 2018-02-02 | 南京邮电大学 | A kind of upstream wavelength bandwidth allocation methods in TWDM PON systems |
| CN112821947A (en) * | 2019-11-18 | 2021-05-18 | Oppo广东移动通信有限公司 | Light fidelity LiFi communication control method, device, equipment and medium of electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7362975B2 (en) | Bandwidth allocation device and dynamic bandwidth allocation method based on class of service in Ethernet Passive Optical Network | |
| US20100208747A1 (en) | Output demultiplexing for dynamic bandwidth allocation in passive optical networks | |
| JPH1174922A (en) | Time division multiplexing method and related facility used for central station of communication network and network terminal | |
| EP2348691A1 (en) | Service transmission method and device used for service transmission | |
| CN102687427A (en) | Ranging method for passive optical network, system, and device | |
| CN101888342A (en) | Bandwidth distribution method and device | |
| KR101403911B1 (en) | A dynamic bandwidth allocation device for a passive optical network system and the method implemented | |
| CN101420359B (en) | Bandwidth allocation system and method in passive optical network | |
| CN104040962B (en) | wavelength bandwidth allocation method | |
| DE102012210581A1 (en) | Method for the adaptive configuration of the transmission spectrum in WDM-PONs | |
| CN101330450B (en) | Method, system and equipment for distributing bandwidth of optical network | |
| US20090175622A1 (en) | Method for allocating upstream transmission bandwidth in wdm-epon | |
| DE102013222714B4 (en) | Overhead Reduction in an Ethernet-based Passive Optical Network (EPON) | |
| CN109428827A (en) | Flow self-adaptive cache allocation device and method and ONU (optical network Unit) equipment | |
| CN102075825A (en) | Uplink bandwidth management method and device in optical communication system | |
| EP0784891B1 (en) | Data securing process in a subscriber access network which can be operated bidirectionally | |
| CN101998190A (en) | Method for consultation in passive optical network, passive optical network system and network elements | |
| CN106331904B (en) | Distribution method of wavelength channels in passive optical network, optical line terminal and system | |
| CN110944249B (en) | Optical network communication method, OLT, ONU and optical network system | |
| CN101141194B (en) | Method of remote managing user side equipment in passive optical network system | |
| US11683102B1 (en) | Bandwidth allocation method and associated optical line terminal | |
| CN109286580A (en) | A kind of passive optic network up bandwidth distribution method and device | |
| Yang et al. | Dynamic bandwidth allocation (DBA) algorithm for passive optical networks | |
| CN104954285A (en) | Dynamic power control method and device for OTN (optical transport network) system | |
| CN102111688A (en) | Uplink bandwidth distribution method for passive optical network and optical line terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110525 |