CN101741703A - Method and system for realizing multi-service transmitting network transmission channel - Google Patents
Method and system for realizing multi-service transmitting network transmission channel Download PDFInfo
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- CN101741703A CN101741703A CN200810179110A CN200810179110A CN101741703A CN 101741703 A CN101741703 A CN 101741703A CN 200810179110 A CN200810179110 A CN 200810179110A CN 200810179110 A CN200810179110 A CN 200810179110A CN 101741703 A CN101741703 A CN 101741703A
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- service aisle
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0287—Protection in WDM systems
- H04J14/0293—Optical channel protection
- H04J14/0294—Dedicated protection at the optical channel (1+1)
Abstract
The invention discloses a method and a system for realizing multi-service transmitting network transmission channel. The method comprises the steps of: arranging a working time clearance for loading a working channel and a protecting time clearance for loading a protecting channel at a same time clearance position of data frames having different wave lengths, wherein T-CONT frames communicated between a sending point and a receiving point loaded by the working time clearance on different directions have a same type, receiving data from the working channel when the working channel is normal and switching to the protecting channel in order to receive data when the working channel is fault. By using the invention, the dynamic transmission channel protection in a multi-service transmitting network can be simply and efficiently realized.
Description
Technical field
The present invention relates to data communication technology, be specifically related to a kind of multi-service transmitting network transmission channel implementation method and system.
Background technology
Rise and PON (Passive Optical Network along with new applications such as IPTV, EPON) use of technology, requirement realizes the unified transmission of multiple business in transmitting network, such as real time business such as voice, non-real-time service such as video that bandwidth guarantees, online game and other non-real-time service as network browsing etc.Because the impossible unconfined increase of the bandwidth of communication network, transfer of data not only needs to carry multiple business, and need reasonable distribution channel width, change, and guarantee for different kinds of business provides different service quality with the bandwidth demand that adapts to different kinds of business.
The present patent application people has proposed a kind of multi-service transmitting network network framework in the patent application of having submitted to.As shown in Figure 1, be the network architecture schematic diagram of this multi-service transmitting network:
This network layer includes service adapting layer, channel layer and physical layer three-decker.Wherein, service adapting layer is responsible for miscellaneous service is carried out the encapsulation and the decapsulation of Unified Form, and the miscellaneous service unification is encapsulated as the GEM frame of expansion, and requires to specify in network the professional unique sign of each bar.According to type of service, priority and destination address etc., the GEM frame of a plurality of expansions is formed dissimilar transmission container (T-CONT) frames, add that path overhead constitutes channel layer, can realize alarm end to end and conveying function monitoring to channel layer.All T-CONT frames are formed transmission convergence layer (TC) frame, add physical layer overhead, comprise frame head synchronously, fields such as administration overhead and bandwidth map, to make things convenient in the network main frame to the communication and the management of each node, the convenient distribution time slot of adjusting each T-CONT frame is realized the dynamic bandwidth adjustment.
The service port of this network comprises traditional TDM (Time Division Multiplex, time division multiplexing) professional, SDH (Synchronous Digital Hierarchy, synchronous digital hierarchy)/SONET (Synchronous Optical Network, Synchronous Optical Network)/ATM (Asynchronous TransferMode, asynchronous transfer mode) business, and the Ethernet data business, data service is optional through delivering to service adapting layer after two layers of exchange.Except these common form of services, be used to divide into groups to transmit technology T-MPLS (the Transport Multi-protocol Label Switching of main flow now, the multi protocol label exchange is transmitted) and PBB-TE (Provider Backbone Bridge-Traffic Engineering, provider backbone bridging connects transmission), also can be used as the service port of this network.In order to support to dock the butt joint of Access Layer optical fiber access technology, the GEM frame of GPON system also can be used as the service port of this network architecture.
A basic demand of this multi-service transmitting network is exactly professional availability, therefore need provide protection mechanism to network, makes the business in an out of order path to change its course and is recovered by a backup path.
Article one, specific business is called passage from end-to-end path by multi-service transmitting network.In SDH, a passage is by a virtual container (VC) and path overhead (POH) expression related with it, in case after setting up, the size and location of passage can not change.
T-CONT frame in the multi-service transmitting network is corresponding with the VC passage of SDH, is called the transmission channel of multi-service transmitting network, i.e. the T-CONT passage.Because the position and the length of T-CONT passage all may change, existingly can not be applicable to multi-service transmitting network based on the fixing path protection mechanism of slot transmission technology (as SDH).
Summary of the invention
The embodiment of the invention provides a kind of multi-service transmitting network transmission channel implementation method and system, to realize the transmission channel protection in the multi-service transmitting network simply and effectively.
A kind of multi-service transmitting network transmission channel implementation method that the embodiment of the invention provides comprises:
The protection time slot of the working time slot of carrying service aisle and carrying protection passage is arranged on the identical time slot position of the Frame on the different wave length, and the type of the T-CONT frame of the different directions of communicating by letter between the sending node that described working time slot carries and receiving node is identical;
When service aisle just often, receive data from described service aisle;
When the service aisle fault, switch to described protection passage and receive data.
The embodiment of the invention provides a kind of multi-service transmitting network transmission channel to realize system, comprising:
Main frame, be used to be provided with the working time slot of carrying service aisle and the protection time slot of carrying protection passage, described working time slot is positioned at the identical time slot position of the Frame on the different wave length with the protection time slot, and the type of the T-CONT frame of the different directions of communicating by letter between the sending node of described working time slot carrying and receiving node is identical;
Sending node is used to obtain service aisle and protection passage that main frame issues, and according to the type of the T-CONT frame of described working time slot carrying, and the T-CONT frame of the same type that needs are sent is put in the time slot corresponding and sends;
Receiving node is used for working as service aisle just often, receives data from described service aisle; When the service aisle fault, switch to described protection passage and receive data.
Multi-service transmitting network transmission channel implementation method and system that the embodiment of the invention provides, characteristics at transmission channel position and Bandwidth Dynamic variation in the multi-service transmitting network, the protection time slot of the working time slot of carrying service aisle and carrying protection passage is arranged on the identical time slot position of the Frame on the different wave length, and the type of the T-CONT frame of the different directions of communicating by letter between the sending node that described working time slot carries and receiving node is identical; When service aisle just often, receiving node receives data from described service aisle; When the service aisle fault, receiving node switches to described protection passage and receives data, thereby realizes dynamic transmission channel protection.
Description of drawings
Fig. 1 is the network architecture schematic diagram of multi-service transmitting network;
Fig. 2 is the flow chart of embodiment of the invention multi-service transmitting network transmission channel implementation method;
Fig. 3 is a transmission channel configuration schematic diagram in the embodiment of the invention;
Fig. 4 utilizes the schematic diagram of the method for the embodiment of the invention to the unidirectional multi-service transmitting network realization of two fibres 1+1 path protection;
Fig. 5 is the schematic diagram of switching of two fine unidirectional looped network 1+1 path protections shown in Figure 4;
Fig. 6 utilizes the schematic diagram of the method for the embodiment of the invention to 1: 1 path protection of the unidirectional multi-service transmitting network realization of two fibres;
Fig. 7 is the structural representation that embodiment of the invention multi-service transmitting network transmission channel is realized system.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is described in further detail below in conjunction with drawings and embodiments.
In order to express easily; in the following description; the T-CONT passage that transmits and receive data under the node normal condition in the multi-service transmitting network is called service aisle; the time slot of the Frame that service aisle is shared is called working time slot, and the time slot of the Frame that the protection passage is shared is called the protection time slot.
Embodiment of the invention multi-service transmitting network transmission channel implementation method, characteristics at transmission channel position and Bandwidth Dynamic variation in the multi-service transmitting network, the protection time slot of the working time slot of carrying service aisle and carrying protection passage is arranged on the identical time slot position of the Frame on the different wave length, and the type of the T-CONT frame of the different directions of communicating by letter between the sending node that described working time slot carries and receiving node is identical; When service aisle just often, receiving node receives data from described service aisle; When the service aisle fault, receiving node switches to described protection passage and receives data, thereby realizes dynamic transmission channel protection.
As shown in Figure 2, be the flow chart of embodiment of the invention multi-service transmitting network transmission channel implementation method:
Respective nodes be finished and be handed down to working time slot and being provided with of time slot of protection can by the main frame in the system; Sending node is when sending data, and according to the type of the T-CONT frame of described working time slot carrying, the T-CONT frame of the same type that needs are sent is put in the time slot corresponding and sends;
In order to satisfy the required bandwidth of professional transmission, the length that described working time slot need be set be sending node with receiving node between the length maximum of the T-CONT frame of the same type of communicating by letter;
In described multi-service transmitting network, each node can be collected each service bandwidth solicited message of this intranodal voluntarily, and reports main frame; Main frame is according to conditions such as the service bandwidth solicited message of each node, current line bandwidth resource and service priority, for each node carries out allocated bandwidth, and bandwidth allocation information is handed down to each node.Each node is assembled into each T-CONT frame in the payload user data district of TC frame (being Frame) according to the sequence number and the bandwidth allocation information of each T-CONT frame of this node.In order to make the opposite end network node after receiving the TC frame, can correctly parse required data, in the TC frame, need send the bandwidth map indication of each T-CONT frame of this node with the road, be used to indicate the time slot position and the length of T-CONT frame.Like this, after the opposite end network node receives described TC frame, just can obtain required data according to the payload user data district in the described TC frame of described bandwidth map indication parsing.
In embodiment of the invention multi-service transmitting network transmission channel implementation method, the bandwidth map indication of corresponding protection passage is consistent with the bandwidth map indication of corresponding service aisle, and the renewal of indicating along with the bandwidth map of corresponding service aisle and upgrading.
In order to understand the setting of transmission channel in the embodiment of the invention more intuitively, Fig. 3 shows transmission channel configuration schematic diagram in the embodiment of the invention:
Wherein, T-CONT (i, j) the T-CONT passage of the transmission data of expression, T-CONT (j, i) the T-CONT passage of the transmission data of expression from the j node to the i node from the i node to the j node.Because both types are identical, T-CONT (i, j) and T-CONT (j, i) the identical time slot in the shared data frame, and T-CONT (i, length j) greater than T-CONT (j, i), so in Frame distributed time slot length and T-CONT (i, j) equal in length.The original position of T-CONT passage is consistent with the original position of time slot.
Under the normal condition, (j, i) and with T-CONT (i j) sends on the working time slot T-CONT in the i node reception working time slot, and the j node receives T-CONT equally from working time slot (i, j) and with T-CONT (j i) sends on the working time slot.
Utilize the method for the embodiment of the invention, can realize multi-service transmitting network transmission channel 1+1 path protection and 1: 1 path protection are elaborated respectively to this below.
As shown in Figure 4, be to utilize the method for the embodiment of the invention that the unidirectional multi-service transmitting network of two fibres is realized the 1+1 protected schematic diagram:
Wherein, W represents the wavelength channel at service aisle place, and P represents to protect the wavelength channel at passage place, and wavelength channel W lays respectively at different optical fiber with P.
Two T-CONT passages of the same type of communication take the identical time slot in the same data frames between node 1 and the node 3.The main frame of multi-service transmitting network is by the length maximum of T-CONT passage of the same type of communication between node 1 and the node 3 time slot that shares out the work in the W wavelength channel.
After working time slot has assigned, promptly determined the position and the length of protection time slot, as shown in Figure 4, working time slot is identical with the position with the length of protection time slot in Frame.Node 1 and node 3 obtain the position and the length of working time slot from the bandwidth map indication of Frame, obtain the position and the length of the protection time slot on the P wavelength channel simultaneously.
When node 1 was communicated by letter with node 3, service aisle sent identical Frame with the protection passage, promptly two data of sending out, and service aisle takies the working time slot in the Frame, and the protection passage takies the protection time slot.
When node is received the bandwidth map indication of new service aisle; automatically upgrade the position and the length of the protection passage of local storage according to the new position of service aisle and length, guarantee that the bandwidth map of correspondence protection passage of local storage is consistent with the bandwidth map of corresponding service aisle.
Service aisle just often, node 1 and node 3 are all selected to receive data from service aisle, i.e. data are received in choosing, when node 1 or node 3 monitor the service aisle fault, automatically switch to the protection passage and receive data, realize the 1+1 path protection.
As shown in Figure 5, be the schematic diagram of switching of two fine unidirectional looped network 1+1 path protections shown in Figure 4:
When the W wavelength channel between node 3 and the node 4 lost efficacy (for example wavelength channel place fibercuts), node 3 detected the service aisle fault, automatically switches to the protection passage, need not to notify node 1, the still two data of sending out of node 1.This moment, the protection passage became service aisle for node 3, and when original service aisle recovered, whether node 3 decisions switched to original service aisle.
As shown in Figure 6, be to utilize the schematic diagram of the method for the embodiment of the invention to 1: 1 path protection of the unidirectional multi-service transmitting network realization of two fibres:
Wherein, working time slot is consistent with above-mentioned 1+1 path protection shown in Figure 4 with division methods with the distribution of protection time slot.
When communicating by letter between node 1 and the node 3, the service aisle that takies working time slot sends regular traffic, and the protection passage sends other inferior grade business, sends the video traffic that bandwidth guarantees such as service aisle, and the protection passage sends the web page browsing business of transmitting as possible.Node 1 and node 3 receive data from service aisle and protection passage simultaneously.
When the bandwidth map indication of service aisle was upgraded, node 1 and node 3 upgraded the position and the length of corresponding protection passage automatically, guaranteed that the bandwidth map of corresponding protection passage is consistent with the bandwidth map of corresponding service aisle.
When node 3 detects the service aisle fault; switch to the protection passage and receive data; and node 1 service aisle of notice transmission Frame breaks down; after node 1 is received fault notification; regular traffic is sent on the protection passage; and stopping at transmission inferior grade business on the protection passage, this moment, node 3 can only receive data from the protection passage.
When service aisle recovers just often, node 3 notice nodes 1 service aisle recovers normal, and node 1 sends regular traffic again on service aisle, send low-grade business on the protection passage.
As seen, utilize embodiment of the invention multi-service transmitting network transmission channel implementation method, can realize the path protection in the multi-service transmitting network simply, effectively, be applicable to the transmission channel that position and Bandwidth Dynamic change in the multi-service transmitting network.Further, when the bandwidth of service aisle and change in location, the protection passage can be adjusted automatically, promptly protects the position of passage and length to keep upgrading synchronously with service aisle, need not manual change, has simplified the configuration of protecting passage.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, described storage medium, as: ROM/RAM, magnetic disc, CD etc.
The embodiment of the invention also provides a kind of multi-service transmitting network transmission channel to realize system, as shown in Figure 7, is the structural representation of this system:
This system comprises: main frame 701, sending node 702 and receiving node 703.Wherein:
Main frame 701; be used to be provided with the working time slot of carrying service aisle and the protection time slot of carrying protection passage; described working time slot is positioned at the identical time slot position of the Frame on the different wave length with the protection time slot, and the type of the T-CONT frame of the different directions of communicating by letter between the sending node of described working time slot carrying and receiving node is identical.In order to guarantee professional correct transmission, the length that described working time slot can be set be sending node with receiving node between the length maximum of the T-CONT frame of the same type of communicating by letter.
Sending node 702 is used to obtain service aisle and protection passage that main frame issues, and according to the type of the T-CONT frame of described working time slot carrying, and the T-CONT frame of the same type that needs are sent is put in the time slot corresponding and sends;
Receiving node 703 is used for working as service aisle just often, receives data from described service aisle; When the service aisle fault, switch to described protection passage and receive data.
Further, easily the Frame that receives is resolved, obtain required data in order to make receiving node 703.Sending node 702 also is used to obtain the bandwidth map indication of the corresponding service aisle that main frame issues, and described bandwidth map indication is used to indicate the time slot position and the length of T-CONT frame.Like this, sending node 702 just can be according to the time slot and the type of the T-CONT frame of described bandwidth map indication, and the T-CONT frame of the same type that needs are sent is put in the corresponding time slot and sends.Equally, receiving node 703 just can be resolved the Frame that receives according to described bandwidth map indication, obtains required data.
Protect the configuration of passage for convenience, the bandwidth map indication that corresponding protection passage can be set is consistent with the bandwidth map indication of corresponding service aisle, and the renewal of indicating along with the bandwidth map of corresponding service aisle and upgrading.
In actual applications, according to the needs of applied environment, can select the protection of 1+1 mode to transmission channel for use, the protection that also can select 1: 1 mode for use.
If select the protection of 1+1 mode for use, then sending node 702 sends identical data at service aisle with the protection passage simultaneously, and service aisle takies the working time slot in the Frame, and the protection passage takies the protection time slot.Service aisle just often, receiving node 703 receives data from service aisle; After service aisle lost efficacy, receiving node 703 switched to the protection passage and receives data, realizes the 1+1 path protection.At this moment, sending node 702 still sends identical Frame at service aisle with the protection passage simultaneously, and receiving node 703 can decide whether switch to described service aisle in its sole discretion after service aisle recovers normally.
If select the protection of 1: 1 mode for use, then at service aisle just often, sending node 702 sends the data of other inferior grade business simultaneously in the data of service aisle transmission regular traffic at the protection passage; Correspondingly, when receiving node 703 receives the data of described regular traffic from described service aisle, receive the data of described other inferior grade business from described protection passage.When receiving node 703 detected the service aisle fault, notice sending node 702 service aisles broke down.Like this, sending node 702 stops at the data that send described inferior grade business on the protection passage after receiving the notice that service aisle breaks down, and the data of described regular traffic are sent on the protection passage, realizes 1: 1 path protection.
In this application, receiving node 703 also is used for after detecting service aisle recovery normally, and notice sending node service aisle recovers normal, and switches to service aisle reception data again; Sending node 702 sends the data of regular traffic again at service aisle after receiving that service aisle recovers normal notice, send the data of other inferior grade business simultaneously at the protection passage.
Need to prove that above-mentioned sending node 702 and receiving node 703 can be any nodes in the multi-service transmitting network, and any node in the multi-service transmitting network can transmit and receive data simultaneously in the manner described above.
More than the embodiment of the invention is described in detail, used embodiment herein the present invention set forth, the explanation of above embodiment just is used for help understanding method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (16)
1. a multi-service transmitting network transmission channel implementation method is characterized in that, comprising:
The protection time slot of the working time slot of carrying service aisle and carrying protection passage is arranged on the identical time slot position of the Frame on the different wave length, and the type of the T-CONT frame of the different directions of communicating by letter between the sending node that described working time slot carries and receiving node is identical;
When service aisle just often, receive data from described service aisle;
When the service aisle fault, switch to described protection passage and receive data.
2. method according to claim 1 is characterized in that, described Frame carries and is used to indicate the time slot position of T-CONT frame and the bandwidth map indication of length;
Described reception data comprise: receiving node is resolved the Frame that receives according to described bandwidth map indication, obtains required data.
3. method according to claim 2 is characterized in that, the bandwidth map indication of corresponding protection passage is consistent with the bandwidth map indication of corresponding service aisle, and the renewal of indicating along with the bandwidth map of corresponding service aisle and upgrading.
4. method according to claim 1 is characterized in that, described method also comprises:
The length of described working time slot is set according to the length maximum of T-CONT frame of the same type between sending node and receiving node.
5. method according to claim 1 is characterized in that, described method also comprises:
Send identical data at described service aisle with described protection passage simultaneously.
6. method according to claim 1 is characterized in that, described method also comprises:
Sending node sends the data of other inferior grade business simultaneously in the data of described service aisle transmission regular traffic at described protection passage;
When receiving node receives the data of described regular traffic from described service aisle, receive the data of described other inferior grade business from described protection passage.
7. method according to claim 6 is characterized in that, described method also comprises:
When receiving node detected the service aisle fault, notice sending node service aisle broke down;
After sending node is received the notice that service aisle breaks down, stop at the data that send described inferior grade business on the protection passage, and the data of described regular traffic are sent on the described protection passage.
8. method according to claim 7 is characterized in that, described method also comprises:
After receiving node detected service aisle recovery normally, notice sending node service aisle recovered normal, and switched to described service aisle reception data again;
After sending node receives that service aisle recovers normal notice, send the data of regular traffic again at described service aisle, send the data of other inferior grade business simultaneously at described protection passage.
9. a multi-service transmitting network transmission channel is realized system, it is characterized in that, comprising:
Main frame, be used to be provided with the working time slot of carrying service aisle and the protection time slot of carrying protection passage, described working time slot is positioned at the identical time slot position of the Frame on the different wave length with the protection time slot, and the type of the T-CONT frame of the different directions of communicating by letter between the sending node of described working time slot carrying and receiving node is identical;
Sending node is used to obtain service aisle and protection passage that main frame issues, and according to the type of the T-CONT frame of described working time slot carrying, and the T-CONT frame of the same type that needs are sent is put in the time slot corresponding and sends;
Receiving node is used for working as service aisle just often, receives data from described service aisle; When the service aisle fault, switch to described protection passage and receive data.
10. system according to claim 9 is characterized in that, described sending node also is used to obtain the bandwidth map indication of the corresponding service aisle that main frame issues, and described bandwidth map indication is used to indicate the time slot position and the length of T-CONT frame;
Described receiving node also is used for resolving the Frame that receives according to described bandwidth map indication, obtains required data.
11. system according to claim 10 is characterized in that, the bandwidth map indication of corresponding protection passage is consistent with the bandwidth map indication of corresponding service aisle, and the renewal of indicating along with the bandwidth map of corresponding service aisle and upgrading.
12. system according to claim 9 is characterized in that, the length of described working time slot be sending node with receiving node between the length maximum of the T-CONT frame of the same type of communicating by letter.
13. method according to claim 9 is characterized in that, described sending node sends identical data at described service aisle with described protection passage simultaneously.
14. system according to claim 9 is characterized in that,
Described sending node sends the data of other inferior grade business simultaneously in the data of described service aisle transmission regular traffic at described protection passage;
When described receiving node receives the data of described regular traffic from described service aisle, receive the data of described other inferior grade business from described protection passage.
15. system according to claim 14 is characterized in that,
Described receiving node also is used for when detecting the service aisle fault, and notice sending node service aisle breaks down;
Described sending node stops at the data that send described inferior grade business on the protection passage, and the data of described regular traffic is sent on the described protection passage after also being used to receive the notice that service aisle breaks down.
16. system according to claim 15 is characterized in that,
Described receiving node also is used for after detecting service aisle recovery normally, and notice sending node service aisle recovers normal, and switches to described service aisle reception data again;
After described sending node is used to also receive that service aisle recovers normal notice, send the data of regular traffic again at described service aisle, send the data of other inferior grade business simultaneously at described protection passage.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101791103A CN101741703B (en) | 2008-11-25 | 2008-11-25 | Method and system for realizing multi-service transmitting network transmission channel |
| PCT/CN2009/072119 WO2010060297A1 (en) | 2008-11-25 | 2009-06-04 | Method and system for realizing a transmission channel of a multi-service transmitting network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101791103A CN101741703B (en) | 2008-11-25 | 2008-11-25 | Method and system for realizing multi-service transmitting network transmission channel |
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| Publication Number | Publication Date |
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| CN101741703A true CN101741703A (en) | 2010-06-16 |
| CN101741703B CN101741703B (en) | 2012-01-25 |
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| CN2008101791103A Expired - Fee Related CN101741703B (en) | 2008-11-25 | 2008-11-25 | Method and system for realizing multi-service transmitting network transmission channel |
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| CN (1) | CN101741703B (en) |
| WO (1) | WO2010060297A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114567410A (en) * | 2020-11-27 | 2022-05-31 | 华为技术有限公司 | Signal frame processing method and related equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452679C (en) * | 2002-12-31 | 2009-01-14 | 北京邮电大学 | Method and device for elastic protection conversion in Ethernet passive optic network system |
| CN100502258C (en) * | 2004-03-23 | 2009-06-17 | 华为技术有限公司 | Multi-optical port optical wavelength converting unit |
| CN100338886C (en) * | 2004-04-09 | 2007-09-19 | 中兴通讯股份有限公司 | Flashing method of non-service cut-off of light transmission of link network |
| US20060013210A1 (en) * | 2004-06-18 | 2006-01-19 | Bordogna Mark A | Method and apparatus for per-service fault protection and restoration in a packet network |
| CN1694382A (en) * | 2005-06-09 | 2005-11-09 | 上海交通大学 | Optical protection exchange method based on quick adjustable coherent receiver |
| CN101094141B (en) * | 2007-06-28 | 2010-06-16 | 中兴通讯股份有限公司 | Method and system for protecting voice channel of access network, and optical line terminal |
-
2008
- 2008-11-25 CN CN2008101791103A patent/CN101741703B/en not_active Expired - Fee Related
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2009
- 2009-06-04 WO PCT/CN2009/072119 patent/WO2010060297A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114567410A (en) * | 2020-11-27 | 2022-05-31 | 华为技术有限公司 | Signal frame processing method and related equipment |
| WO2022111323A1 (en) * | 2020-11-27 | 2022-06-02 | 华为技术有限公司 | Signal frame processing method and related device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101741703B (en) | 2012-01-25 |
| WO2010060297A1 (en) | 2010-06-03 |
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