CN1232073C - Method and equipment for implementing service interchanging between subnet of synchronous digital transmission system - Google Patents
Method and equipment for implementing service interchanging between subnet of synchronous digital transmission system Download PDFInfo
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- CN1232073C CN1232073C CN 02121570 CN02121570A CN1232073C CN 1232073 C CN1232073 C CN 1232073C CN 02121570 CN02121570 CN 02121570 CN 02121570 A CN02121570 A CN 02121570A CN 1232073 C CN1232073 C CN 1232073C
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 9
- 230000011664 signaling Effects 0.000 claims abstract description 56
- 239000013307 optical fiber Substances 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 230000010354 integration Effects 0.000 claims description 6
- 230000006855 networking Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/14—Monitoring arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
- H04J2203/0057—Operations, administration and maintenance [OAM]
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- Data Exchanges In Wide-Area Networks (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
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Abstract
The present invention discloses a service intercommunication method for subnetworks in a synchronous digital transmission system. In the method, an output subnetwork processing module is added in a service telephone board of a network element of each output subnetwork; service telephone boards between the network elements of two output subnetworks are connected through a serial port line and a telephone line; when the network elements between two subnetworks communicate service, the signaling and the voice of a service telephone are respectively transmitted through the serial port line and the telephone line between the network elements of the output subnetworks. The present invention also discloses a device for implementing the method. The method and the device not only realize the service intercommunication of any network elements between the subnetworks, but also have the advantages of resource consumption reduction, simple design, easy realization, stability, convenience and reliability.
Description
Technical field
The present invention relates to the communication technology between subnet in synchronous digital hierarchy (SDH) system, refer to a kind of realize in the synchronous digital transmission system method of public affair intercommunication and device between subnet especially.
Background of invention
In the SDH Optical Transmission Network OTN, each network element connects by optical fiber, between each network element by the public affair byte in the SDH frame structure--E1, E2 realize that the user carries out the request of official call.In the network environment of reality, two subnet A and subnet B that distance is more approaching, the business intercommunication in the subnet separately, public affair is intercommunication also.But, under the situation that does not have optical fiber to connect, among the subnet A arbitrarily among network element and the subnet B arbitrarily the official call between the network element connect and can not realize.Present solution is respectively to select a network element in A, B subnet, increases optical interface board or increase the light mouth in the network element that this is chosen, and connects two subnets of A, B by optical fiber, connects to realize official call, as shown in Figure 1.
Fig. 1 is a networking schematic diagram of realizing the public affair intercommunication in the prior art between two adjacent subnets, four network elements 1,2,3,4 are arranged respectively among subnet A and the subnet B, business, public affair intercommunication in the subnet A between each network element, business, public affair intercommunication in the subnet B between each network element, but can not realize communication between two subnets.At this moment, in subnet A and subnet B, choose network element 4 respectively, in the optical interface processing module of two network elements 4, respectively increase an optical interface board, or in network element 4 original optical interface boards, choose one and do not use up mouth, connect this two network elements by optical fiber, and then subnet A and B are linked together.Fiber path has been arranged, and any network element among subnet A and the B can carry out the official traffic contact by E1, E2 byte in the SDH frame structure via this optical fiber.
Based on above-mentioned networking structure, the implementation procedure of public affair intercommunication, be so as shown in Figure 3: when the network element among the subnet B 3 will carry out official call with the network element 2 among the subnet A, network element 2 among the subnet A passes through the SDH frame structure with public affair byte E1 via light path 304, E2 is sent on the Optical Fiber Interface Board 301 of network element 4 optical interface processing modules, Optical Fiber Interface Board 301 is with E1, the E2 byte is delivered on the master control borad (SCC) 302 by the up-high speed holding wire, SCC302 passes through the down high speed holding wire again with E1, the E2 byte is delivered to Order Wire Card OW 500, the SDH frame that light mouth from Order Wire Card OW 500 transmits by light path 305, with E1, the E2 byte is sent on the Order Wire Card OW 500 of network element 4 the subnet B from the light mouth, then, the SCC302 of network element 4 receives the E1 that Order Wire Card OW 500 is sent here, the E2 byte, deliver to again on the Optical Fiber Interface Board 301, via the light path 306 between net interior 4 and the network element 3 service message is sent to the network element 3 of subnet B again.
Figure 2 shows that two networking schematic diagrames of realizing the public affair intercommunication back-to-back between subnet in the prior art, subnet A and subnet B are two chain nets, subnet A comprises two nodes of net1, net2, business between the net1,2, the equal intercommunication of public affair, equally, subnet B comprises two nodes of net3, net4, the also intercommunication of the business between the net3,4, public affair.If but do not have light path to connect, net1, net2 could carry out public affair with net3, net4 and be connected.Increasing optical interface board on net2 and the net3 or choosing the mouth of not using up on original optical interface board respectively, and connecting with optical fiber, can realize the public affair intercommunication between A, B subnet, the realization flow under its realization flow and the first kind of networking situation noted earlier is similar.
For above-mentioned two kinds of solutions that realize public affair intercommunication between net, though realized interconnection with light path, transmitting range is far away, and reliable and stable.But, increase tabula rasa and optical fiber and increased equipment cost undoubtedly, also increased the complexity of structural design simultaneously; And, though optical fiber that is increased and tabula rasa also can be used for carrying out service communication,, be purely for transmitting public affair byte E1, E2 if the light path that increases does not have professional the transmission, obviously be the significant wastage of resource.In addition, not every equipment can both directly increase tabula rasa, such as: in second kind of scheme, if net2 and net3 are terminating multiplexer (TM) equipment, just can not realize intercommunication by adding tabula rasa, as seen, existing solution also has certain restriction to equipment.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of realize in the synchronous digital transmission system method of public affair intercommunication and device between subnet, make it can not only realize the public affair intercommunication of network element arbitrarily between subnet, and reduced resource cost, simplicity of design, be easy to realize, stable, convenient, reliable.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind ofly realize in the synchronous digital transmission system method of public affair intercommunication between subnet, this method is to go out to increase by one in the Order Wire Card OW of subnet network element and go out the subnet processing module at each, and two go out the going out between the subnet processing module by Serial Port Line and telephone wire interconnection of Order Wire Card OW between the subnet network element; When two sub-inter-network units realize the public affair intercommunications, non-ly go out that the subnet network element connects by the light path between network element and Home Network goes out master control borad in the subnet network element and transmits public affair byte to Home Network in the frame structure and go out and go out the subnet processing module on the subnet network element Order Wire Card OW; Perhaps, going out the subnet network element connects and transmits public affair byte to Home Network non-and go out the subnet network element by the light path between subnet processing module, master control borad and network element of going out on self Order Wire Card OW; Go out the signaling of official telephone between the subnet network element and speech respectively by going out Serial Port Line and the telephone wire transmission that is connected between the subnet processing module on the Order Wire Card OW separately.
The non-of two subnets goes out when realizing the public affair intercommunication between the subnet network element, and this method specifically comprises:
Non-ly go out the subnet network element and deliver to out the public affair byte on the Optical Fiber Interface Board of subnet network element optical interface processing module by light path, Optical Fiber Interface Board is delivered to master control borad by the up-high speed holding wire with the public affair byte, master control borad is delivered to Order Wire Card OW by the down high speed holding wire with the public affair byte, goes out the subnet network element via what go out on the Order Wire Card OW that signaling interface that the subnet processing module connected and cable voice port deliver to the purpose subnet again;
After the going out the subnet network element and go out cable voice port that the subnet processing module connects and signaling interface and receive information of purpose subnet from self Order Wire Card OW, signaling and speech are incorporated into the expense time slot, by the up-high speed holding wire public affair byte is delivered to master control borad, master control borad is delivered to Optical Fiber Interface Board by the down high speed holding wire with the public affair byte again, and then sends to the purpose network element by light path.
In said process, signaling is resolved conversion and expense integration processing in Order Wire Card OW, and speech information carries out encoding and decoding and expense integration processing in Order Wire Card OW.
The invention allows for a kind of device of realizing said method, this device is arranged in Order Wire Card OW, and the Order Wire Card OW that goes out the subnet network element in the Serial Port Line by signaling interface and the telephone wire of cable voice port and another subnet links to each other, and this device comprises at least:
Signaling processing module links to each other with signaling interface, is used to resolve signaling and gives the main control module processing;
Main control module is used to explain signaling and speech and controls signaling and the transmission of speech;
Expense and speech processing module link to each other with cable voice port, are used for speech is carried out encoding and decoding and expense integration processing;
Main control module is connected signaling processing module and expense and speech processing module simultaneously by control bus, data/address bus and address bus.
Wherein, described signaling processing module further comprises universal asynchronous protocol processes chip and level conversion unit, and this level conversion unit links to each other with signaling interface.Described expense and speech processing module further comprise overhead processing unit, codec and subscriber line circuit, and this overhead processing unit links to each other with master control borad (SCC) by overhead bus, and subscriber line circuit directly connects cable voice port.
By such scheme as can be seen, key of the present invention is: increase by one and go out the subnet processing module in the Order Wire Card OW that goes out the subnet network element, by special signaling and cable voice port, with being electrically connected the public affair intercommunication that realizes between subnet.
Therefore, the method and the device of public affair intercommunication between subnet in the realization synchronous digital transmission system provided by the present invention, owing to be by the Order Wire Card OW that two sons go out in the subnet network element two subnets to be connected, implement both simple, reliable and stable again on the net with electric connecting mode; And also uncomplicated on the structural design, equipment there is not any restriction yet.Because only need increase simple circuit board, Serial Port Line and telephone wire,, greatly reduce resource cost and equipment cost with respect to increasing optical interface board and optical fiber.For any network element between two subnets, all can realize the public affair intercommunication via the mode that light path adds circuit.
Description of drawings
Fig. 1 is an embodiment networking diagram of realizing the public affair intercommunication in the prior art between two subnets;
Fig. 2 is another embodiment networking diagram of realizing the public affair intercommunication in the prior art between two subnets;
Fig. 3 is a schematic flow sheet of realizing the public affair intercommunication in the networking example shown in Figure 1 between two subnets;
Fig. 4 is for going out the composition structural representation of subnet processing module among the present invention;
Fig. 5 is the annexation schematic diagram of other parts in Order Wire Card OW and the optical interface processing module.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Both wasted resource owing to adopt the public affair intercommunication between light path realization subnet, increase cost again, therefore, the present invention adopts electric connecting mode that the Order Wire Card OW that goes out on the subnet network element selected in two subnets is linked together, connect each other together by one section each network element that is electrically connected two light paths connection subnets like this, that is to say that the public affair intercommunication of certain two network element may middle can be walked the passage of one section circuit.
Fig. 4 is for going out the composition structural representation of subnet processing module among the present invention, and the present invention is in selected the going out to have increased on the original Order Wire Card OW of subnet network element one and go out subnet processing module 400 of each subnet, to realize the public affair intercommunication.As shown in Figure 4, this goes out subnet processing module 400 and comprises main control module 401, expense and speech processing module 402, signaling processing module 403 3 parts at least, between expense and speech processing module 402 and the main control module 401, all realize controlling the transmission of signaling and voice data between signaling processing module 403 and the main control module 401 by control bus (CB), data/address bus (DB) and address bus (AB).This goes out subnet processing module 400 and goes out by signaling interface and Serial Port Line and another subnet that the subnet processing module that goes out of Order Wire Card OW links to each other in the subnet network element, realizes signalling interworking, and signaling interface adopts DB9 serial port in the present embodiment; Simultaneously, this goes out the subnet processing module and links to each other with the subnet processing module that goes out of Order Wire Card OW in another subnet network element with telephone wire by cable voice port, realizes the speech intercommunication, and cable voice port adopts the RJ45 interface in the present embodiment.Wherein, signaling processing module 403 comprises level conversion unit and universal asynchronous protocol processes chip (UART) unit, signaling by the signaling interpretation process of signaling interface through the conversion of level conversion unit, universal asynchronous protocol processes chip (UART) unit after, give CPU with the signaling that explains and do further processing, this level conversion unit can adopt RS232/RS422 serial ports conversion chip; Expense and speech processing module 402 comprise overhead processing unit, codec, subscriber line circuit and local call interface, and speech is delivered to the overhead processing unit by the processing of subscriber line circuit and codec, exchange in the corresponding time slot.
The annexation of other parts as shown in Figure 5 in Order Wire Card OW 500 and the optical interface processing module, Order Wire Card OW (EOW) 500 1 ends link to each other with master control borad (SCC) in the optical interface processing module by up-high speed holding wire (UHW) and down high speed holding wire (DHW), and the SCC while also links to each other with Optical Fiber Interface Board with DHW by UHW; The other end of Order Wire Card OW 500, directly links to each other with the Order Wire Card OW that goes out the subnet network element of another subnet via being electrically connected of Serial Port Line and telephone wire by signaling interface and cable voice port.Wherein, only transmit E1, E2 byte on the HW between SCC and the Order Wire Card OW 500, and the HW between Optical Fiber Interface Board and the SCC goes up the multiple overhead byte of transmission.In the prior art, when connect realizing the public affair intercommunication with optical fiber, the pcm encoder of signaling and speech all transmits by E1, the timesharing of E2 byte, and what promptly signaling and speech were walked is same time slot, and signaling and speech are separately transmission in the present invention.
In conjunction with Fig. 1, Fig. 4 and shown in Figure 5, still the topological structure with Fig. 1 is an example,, increases in the Order Wire Card OW 500 of subnet A and subnet B network element 4 respectively and subnet processing module 400 for going out the subnet network element with the network element 4 of subnet A and subnet B.In the present embodiment, go out the universal asynchronous protocol processes chip employing ST16C2552 of signaling processing module 403 in the subnet processing module 400; Overhead processing unit in expense and the speech processing module 402 adopts programmable logic device, as: FPGA, the subscriber line circuit unit is made up of MT8870DSR, TP3067 and SH723 thick film chip.When the network element among the subnet A 2 will carry out official call with the network element 3 among the subnet B, network element 2 among the subnet A is via network element 1, light path between 4 is sent to the overhead byte of SDH frame structure on the Optical Fiber Interface Board of network element 4, the Optical Fiber Interface Board of network element 4 is delivered to master control borad SCC by UHW with overhead byte again, SCC extracts public affair byte E1 wherein, E2, be sent to out in the main control module 401 in the subnet processing module 400 by DHW and carry out analysis interpretation, main control module 401 is sent into signaling processing module 403 and expense and speech processing module 402 with signaling and speech respectively via bus, after corresponding encoding and decoding or level conversion processing, the telephone wire that signaling and the Serial Port Line that speech is connected by signaling interface respectively are connected with cable voice port, delivering to subnet B network element 4 goes out in the signaling processing module 403 and expense and speech processing module 402 on the subnet processing module 400, respectively through after signaling conversion and the encoding and decoding speech processing, signaling and speech are sent into main control module 401 by bus, if main control module 401 explains speech and signaling is the our station phone, then speech coding is crossed to local time slot by spending process module, pass through codec then, subscriber line circuit is delivered to the local call interface, and this moment, public affair was communicated with.If main control module 401 explains speech and signaling is not the our station phone, then the overhead processing unit in main control module 401 control expenses and the speech processing module 402 is incorporated into signaling and speech in the corresponding expense time slot and goes, E1, E2 byte by overhead bus, SCC passes to Optical Fiber Interface Board by master control borad, connects by light path to be sent to network element 3.So, any network element on subnet A, the B can have been realized the public affair intercommunication.
Claims (6)
1, a kind ofly realizes in the synchronous digital transmission system method of public affair intercommunication between subnet, it is characterized in that: go out to increase by one in the Order Wire Card OW of subnet network element and go out the subnet processing module at each, two go out the going out between the subnet processing module by Serial Port Line and telephone wire interconnection of subnet network element Order Wire Card OW;
When two sub-inter-network units realize the public affair intercommunications, non-ly go out that the subnet network element connects by the light path between network element and Home Network goes out master control borad in the subnet network element and transmits public affair byte to Home Network in the frame structure and go out and go out the subnet processing module on the subnet network element Order Wire Card OW; Perhaps, going out the subnet network element connects and transmits public affair byte to Home Network non-and go out the subnet network element by the light path between subnet processing module, master control borad and network element of going out on self Order Wire Card OW; Go out the signaling of official telephone between the subnet network element and speech respectively by going out Serial Port Line and the telephone wire transmission that is connected between the subnet processing module on the Order Wire Card OW separately.
2, method according to claim 1 is characterized in that, the non-of two subnets goes out when realizing the public affair intercommunication between the subnet network element, and this method specifically comprises:
Non-ly go out the subnet network element and deliver to out the public affair byte on the Optical Fiber Interface Board of subnet network element optical interface processing module by light path, Optical Fiber Interface Board is delivered to master control borad by the up-high speed holding wire with the public affair byte, master control borad is delivered to Order Wire Card OW by the down high speed holding wire with the public affair byte, goes out the subnet network element via what go out on the Order Wire Card OW that signaling interface that the subnet processing module connected and cable voice port deliver to the purpose subnet again;
After the going out the subnet network element and go out cable voice port that the subnet processing module connects and signaling interface and receive information of purpose subnet from self Order Wire Card OW, signaling and speech are incorporated into the expense time slot, by the up-high speed holding wire public affair byte is delivered to master control borad, master control borad is delivered to Optical Fiber Interface Board by the down high speed holding wire with the public affair byte again, and then sends to the purpose network element by light path.
3, method according to claim 1 and 2 is characterized in that: signaling is resolved conversion and expense integration processing in Order Wire Card OW, speech information carries out encoding and decoding and expense integration processing in Order Wire Card OW.
4, a kind of device of realizing said method, it is characterized in that: this device is arranged in Order Wire Card OW, and the Order Wire Card OW that goes out the subnet network element in the Serial Port Line by signaling interface and the telephone wire of cable voice port and another subnet links to each other, and this device comprises at least:
Signaling processing module links to each other with signaling interface, is used to resolve signaling and gives the main control module processing;
Main control module is used to explain signaling and speech and controls signaling and the transmission of speech;
Expense and speech processing module link to each other with cable voice port, are used for speech is carried out encoding and decoding and expense integration processing;
Main control module is connected signaling processing module and expense and speech processing module simultaneously by control bus, data/address bus and address bus.
5, device according to claim 4 is characterized in that: described signaling processing module further comprises universal asynchronous protocol processes chip and level conversion unit, and this level conversion unit links to each other with signaling interface.
6, device according to claim 4, it is characterized in that: described expense and speech processing module further comprise overhead processing unit, codec and subscriber line circuit, wherein, described overhead processing unit links to each other with master control borad (SCC) by overhead bus, and subscriber line circuit directly connects cable voice port.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02121570 CN1232073C (en) | 2002-06-26 | 2002-06-26 | Method and equipment for implementing service interchanging between subnet of synchronous digital transmission system |
| AU2003236171A AU2003236171A1 (en) | 2002-06-26 | 2003-04-28 | Method and system for intercommunicating traffic among sub-networks in synchronous digital transmission system |
| PCT/CN2003/000311 WO2004004220A1 (en) | 2002-06-26 | 2003-04-28 | Method and system for intercommunicating traffic among sub-networks in synchronous digital transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02121570 CN1232073C (en) | 2002-06-26 | 2002-06-26 | Method and equipment for implementing service interchanging between subnet of synchronous digital transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1464692A CN1464692A (en) | 2003-12-31 |
| CN1232073C true CN1232073C (en) | 2005-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02121570 Expired - Lifetime CN1232073C (en) | 2002-06-26 | 2002-06-26 | Method and equipment for implementing service interchanging between subnet of synchronous digital transmission system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1232073C (en) |
| AU (1) | AU2003236171A1 (en) |
| WO (1) | WO2004004220A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789399A (en) * | 2012-07-06 | 2012-11-21 | 苏州汉明科技有限公司 | Inter-process communication method of multi-core distribution system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366021C (en) * | 2004-10-22 | 2008-01-30 | 华为技术有限公司 | System and method for optical transmission subnetwork communicating with external subnetwork using official telephone |
| CN103873468B (en) * | 2014-03-12 | 2017-12-08 | 京信通信系统（广州）有限公司 | Cooperate with the apparatus and method of processing data |
| CN104158994B (en) * | 2014-08-26 | 2018-01-02 | 烽火通信科技股份有限公司 | Realize the circuit of span public affair |
| CN116032997A (en) * | 2022-12-29 | 2023-04-28 | 南京先进计算产业发展有限公司 | Interconnection method between two subnets in high-performance computing environment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453034B1 (en) * | 1999-07-29 | 2002-09-17 | Mci Worldcom, Inc. | Method of and system for extending internet telephony over virtual private network direct access lines |
| JP2001053778A (en) * | 1999-08-05 | 2001-02-23 | Sony Corp | Communication equipment, communication method and medium |
-
2002
- 2002-06-26 CN CN 02121570 patent/CN1232073C/en not_active Expired - Lifetime
-
2003
- 2003-04-28 WO PCT/CN2003/000311 patent/WO2004004220A1/en not_active Application Discontinuation
- 2003-04-28 AU AU2003236171A patent/AU2003236171A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789399A (en) * | 2012-07-06 | 2012-11-21 | 苏州汉明科技有限公司 | Inter-process communication method of multi-core distribution system |
| CN102789399B (en) * | 2012-07-06 | 2015-10-21 | 苏州汉明科技有限公司 | Inter-process communication methods in multinuclear distributed system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003236171A1 (en) | 2004-01-19 |
| WO2004004220A1 (en) | 2004-01-08 |
| CN1464692A (en) | 2003-12-31 |
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