CN202713353U - Packet transport network device - Google Patents
Packet transport network device Download PDFInfo
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- CN202713353U CN202713353U CN201220435404.XU CN201220435404U CN202713353U CN 202713353 U CN202713353 U CN 202713353U CN 201220435404 U CN201220435404 U CN 201220435404U CN 202713353 U CN202713353 U CN 202713353U
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Abstract
An embodiment of the utility model provides a PTN (Packet Transport Network) device, comprising a UNI (User Node Interface) and an NNI (Network Node Interface), the UNI is connected with a QoS (Quality of Service) module and a protection module, and the device also comprises a telephone service interface, a G.703 interface and a plurality of serially connected G.703 interfaces, the telephone service interface, the G.703 interface and the plurality of serially connected G.703 interfaces are connected with encapsulation and decapsulation modules, and each encapsulation and decapsulation module is connected with the QoS module. The embodiment of the packet transport network device can realize processing of directly accessed low-bitrate service data without arrangement of a protocol conversion device, and the cost is reduced.
Description
Technical field
The utility model relates to communication technical field, relates in particular to a kind of Packet Transport Network (Packet Transport Network, PTN) equipment.
Background technology
Packet Transport Network is a kind of group-based exchange, connection-oriented multi-service tranmission techniques; it can provide high efficiency multiple service supporting; have powerful protection, Operations, Administration and Maintenance (Operation Administration and Maintenance; OAM) and Network Management Function; and possess the carrier class transport network abilities such as statistic multiplexing flexibly, strict service quality (Quality of Service, QoS) and time synchronized.
The below simply introduces the networking structure of existing PTN; as shown in Figure 1; the networking structure of PTN can be divided into three layers; be core layer 101, convergence-level 102 and Access Layer 103; usually convergence-level 102 and Access Layer 103 are used more; and Access Layer 103 at present towards the access object mainly be 2G/3G/ Long Term Evolution (LTE) base station, private network professional (such as railway systems etc.) and group customer etc.; in general; the capacity of core layer 101 and convergence-level 102 is larger, the PTN place capacity less of Access Layer 103.
The structure of existing PTN equipment; as shown in Figure 2; comprise: delivery unit 201, control unit 202 and administrative unit 203; wherein; delivery unit 201 respectively with control unit 202 and administrative unit 203 interactive communications; and delivery unit 201 can comprise user node interface (User Node Interface; UNI) 2011, QoS module 2012, packet switched module 2013, OAM module 2014, protection module 2015, time synchronized module 2016, Network-Node Interface (Network Node Interface, NNI) 2017.Particularly; QoS module 2012 main realizations are carried out the functions such as flow mark, traffic shaping, queue scheduling and avoid congestion to the data message after the encapsulation; OAM module 2014 mainly is to extract the OAM message from QoS module 2012 or UNI 2011; carry out maintenance and management; protection module 2015 mainly is to extract protection information from OAM module 2014 or UNI 2011, realizes corresponding oam and defencive function.
Further, in Fig. 2, UNI 2011 main user oriented accesses, UNI can be the interface of the types such as E1, FE (100M), GE (1000M) or STM-1 (155M), and it and QoS module 2012, protection module 2015 and time synchronization module 2016 interactive communications, and QoS module 2012 and packet switched module 2013 interactive communications; NNI 2017 can be the interface of the types such as GE, 10GE or 40GE mainly towards the circuit networking, and it and QoS module 2012 and time synchronization module 2016 interactive communications, and QoS module 2012 and packet switched module 2013 interactive communications.Be prior art for the concrete interaction flow between the internal module of PTN equipment, do not repeat them here.
Structure by above-mentioned existing PTN equipment can be found out, no matter be the NNI interface, or uni interface, all are the access service for the treatment of high data rate, so, equipment component and business for satisfying the standards such as YD/T13802-2005 and GB/T15279-2002 can not access effectively.During such as the situation of a large amount of 64kbit/s of low rate traffic data (being that speed is lower than 2Mbit/s) process to(for) needs such as railway, electric power, subways or voice signal, existing PTN equipment can't directly receive or process above-mentioned business datum.
Normally in PTN networking outside protocol conversion device 301 is set separately at present, be connected (as shown in Figure 3) with PTN equipment 302, protocol conversion device 301 receives user for example after voice signal that side sends initiated in voice, advanced horizontal pulse coded modulation (Pulse Code Modulation, PCM) protocol conversion, be converted to the grouped data report of mating with PTN equipment 302 and send PTN equipment to, after processing, PTN equipment 302 is sent on the PTN equipment 304 of phonetic incepting side by PTN network 303, after processing, PTN equipment 304 again is sent to protocol conversion device 305 again, after protocol conversion device is processed, user by the phonetic incepting side receives, thereby realize the access of low rate traffic, above-mentioned PTN network 303 is also mutual with service server 306.
Can find out that from above-mentioned implementation existing PTN equipment can only be established by protocol conversion is set separately, just can finish the processing to the low-rate data business, this implementation has not only increased network complexity, maintenance and management difficulty, also causes cost higher.Therefore, existing PTN equipment can't be processed the low-rate data business of direct access.
The utility model content
The utility model embodiment provides a kind of PTN equipment, can realize need not to arrange protocol conversion device, finishes the processing to the low rate traffic data of direct access, has simplified network configuration, has reduced cost.
Based on the problems referred to above, a kind of PTN equipment that the utility model embodiment provides, comprise user node interface UNI and Network-Node Interface NNI, described UNI is connected with protection module with the service quality QoS module respectively, and described equipment also comprises: telephone service interface, the G.703 interface of interface and a plurality of serial connections G.703; Described telephone service interface, described G.703 interface and the G.703 interface of a plurality of serial connections of being connected are connected with the encapsulation decapsulation module respectively, and each encapsulates decapsulation module and is connected with described QoS module.
The beneficial effect of the utility model embodiment comprises:
The PTN equipment that the utility model embodiment provides, the integrated a plurality of interfaces that can process the low rate traffic data on PTN equipment (telephone service interfaces, G.703 the G.703 interface of interface and a plurality of serial connections), these interfaces are connected with the encapsulation decapsulation module respectively, and each encapsulation decapsulation module is connected with the QoS module again.Like this, the utility model embodiment is when work, these interfaces can for example directly receive G.703 interface, V.35 interface, the V5.2 interface, POTS, the low rate traffic data that N * 64KB interface or audio interface etc. send, and the corresponding encapsulation of process decapsulation module is converted to corresponding grouped data report, the QoS module that sends PTN equipment to is carried out subsequent treatment, so, need not to arrange separately protocol conversion device, just can realize the processing to the low rate traffic data of direct access, simplified network configuration, the reliability of raising system has also reduced cost.
Description of drawings
Fig. 1 is the group-network construction figure of existing PTN;
Fig. 2 is the structural representation of existing PTN equipment;
Fig. 3 is the existing structural representation of setting up the PTN networking behind the protocol conversion device;
The structure chart of the PTN equipment that Fig. 4 provides for the utility model embodiment;
Handling process schematic diagram during POTS interface access service data that Fig. 5 provides for the utility model embodiment.
Embodiment
Below in conjunction with Figure of description, the embodiment of a kind of PTN equipment that the utility model embodiment is provided describes.
A kind of PTN equipment that the utility model embodiment provides, as shown in Figure 4, the structure identical with existing PTN equipment comprises delivery unit 401, control unit 402 and administrative unit 403, wherein, delivery unit 401 respectively with control unit 402 and administrative unit 403 interactive communications.
Particularly, delivery unit 401 can comprise UNI 4011, QoS module 4012, packet switched module 4013, OAM module 4014, protection module 4015, time synchronized module 4016 and NNI 4017.
Preferably, above-mentioned UNI 4011 can be the interface of the types such as FE (100M), GE (1000M) or STM-1 (155M), and it and QoS module 4012, protection module 4015 and time synchronization module 4016 interactive communications, and QoS module 4012 and packet switched module 4013 interactive communications; Above-mentioned NNI 4017 can be the types such as GE, 10GE or 40GE, and it and QoS module 4012 and time synchronization module 4016 interactive communications, and QoS module 4012 and packet switched module 4013 interactive communications.Be prior art for the concrete interaction flow between the internal module of PTN equipment, do not repeat them here.
As shown in Figure 4, the PTN equipment that the utility model embodiment provides is with existing PTN equipment difference, also comprises telephone service interface 4018, the G.703 interface 4022 of interface 4020 and a plurality of serial connections G.703;
Above-mentioned telephone service interface 4018 is connected with encapsulation decapsulation module 4019, and encapsulation decapsulation module 4019 is connected with QoS module 4014;
G.703 interface 4020 is connected with encapsulation decapsulation module 4021, and encapsulation decapsulation module 4021 is connected with QoS module 4014;
G.703 the interface 4022 of a plurality of serial connections is connected with encapsulation decapsulation module 4023, and encapsulation decapsulation module 4023 is connected with QoS module 4014.
Preferably, it is the business datum that POTS interface or audio interface transmit that above-mentioned telephone service interface 4018 is used for receiving external interface, for example can be plain old telephone service (Plain Old Telephone Service, POTS) interface, PSTN (Public Switched Telephone Network, PSTN) interface or Digital Telephone Network (Integrated Services Digital Network, ISDN) interface.
Preferably, above-mentioned G.703 interface 4020 is standard E1 interfaces, can comprise two kinds of patterns of framing and non-framing, and the speed of the first pattern is 1.984Mbps, and the speed of the second pattern is 2.048Mbps.Can find out that from aforementioned G.703 interface 4020 can receiving velocity be the business datum of 2M.In the utility model embodiment, G.703 interface 4020 is interface G.703, the low rate traffic data of interface (maximum rate is 2.048Mbps) and N * 64KB interface transmission V.35 in order to receive external interface.In addition, G.703 the type of interface 4020 can be BNC or RJ45.
Preferably, the G.703 interface 4022 of above-mentioned a plurality of serial connections is used for receiving the low rate traffic data that external interface is the transmission of V5.2 interface.Because the data rate of V5.2 interface is higher than the speed of G.703 interface transmission, only have one G.703 interface can't directly process the data of V5.2 interface, therefore, need the data that the V5.2 interface transmits are carried out shunt, the traffic data rate that for example transmits is 3M, these data can be divided into multichannel data to reduce the speed of every circuit-switched data, and for example it is divided into two-way: a circuit-switched data is 2M, another circuit-switched data is 1M, this two paths of data is sent respectively to two G.703 interface 4022 processing of serial connection.G.703 the interface of 2 serial connections only is shown in Fig. 4, and certainly the utility model embodiment does not limit the concrete quantity of the G.703 interface of serial connection.
Preferably, encapsulation decapsulation module 4019, encapsulation decapsulation module 4021 and be connected decapsulation module 4023 and can be connected respectively and be connected (only show among the figure encapsulate decapsulation module 4023 be connected with time synchronized module 4016) with OAM module 4013, protection module 4015 with the time synchronized module.
In the utility model embodiment, above-mentioned PTN equipment can also comprise:
Toggle switch (not shown among Fig. 4), toggle switch use sliding piece to select to switch, and can switch to select to be connected with interface 4020 G.703, and perhaps the switching selection is connected with the G.703 interface 4022 of described a plurality of serial connections.Concrete structure can adopt the structure of toggle switch commonly used at present, is not described in detail in this.
Particularly, be G.703 interface, V.35 interface and N * 64KB interface transmission if the data service of access is external interface, at this moment toggle switch can switch to G.703 interface 4020; Be that the V5.2 interface transmits if the data service of access is external interface, at this moment toggle switch can switch to G.703 interface.
The below is take the POTS plain old telephone as example, and the handling process of POTS interface when the incoming speech signal is elaborated, and concrete handling process is as follows:
Externally side initiated in voice, be time-division multiplexer mode (Testing Data Management, TDM) professional transmitting terminal), as shown in Figure 5, the POTS interface of PTN equipment 501 receives voice initiate voice signal that side sends after, the POTS interface is sampled to the POTS voice signal first, and then carry out quantization encoding and process, form the pcm stream that A leads or μ leads, form the E1 Frame, the POTS interface sends the E1 Frame to the encapsulation decapsulation module and encapsulates, then encapsulate pseudo wire emulation (the Pseudo Wire Emulation Edge-to-Edge that decapsulation module adopts edge-to-edge, PWE3) obtain grouped data report after technology encapsulates, and send grouped data report to the QoS module, the QoS module can be carried out the flow mark to grouped data report, traffic shaping, the processing such as queue scheduling and avoid congestion, be sent to the packet switched module after the QoS module is processed grouped data report and finish the grouped data report conversion, afterwards, the time synchronized module can be extracted synchronously identification sync message from encapsulation decapsulation module or packet switched module, carrying out timestamp processes, beat after the timestamp through the ETH of NNI passage or external time sync cap be sent to PTN network 502, here, PTN network 502 is also mutual with service server 504, concrete reciprocal process is prior art, does not repeat them here.
Phonetic incepting side externally, after PTN equipment 503 receives the grouped data report of PTN network 502 transmission, utilize the PWE3 technology to carry out decapsulation by the encapsulation decapsulation module, E1 Frame after the output decapsulation, then the POTS interface is resolved each E1 Frame, and the mode that extracts by time slot obtains pcm stream, and the A that re-uses standard leads or μ leads pcm stream is carried out decompress(ion), can be reduced to original voice signal, be sent to the outside POTS interface of phonetic incepting side.
In above-mentioned processing procedure, the OAM module can directly be extracted the OAM message from the encapsulation decapsulation module, carries out maintenance and management; Protection module can directly extract protection information from OAM module or encapsulation decapsulation module, realizes corresponding oam and defencive function.
So, for interface G.703, if access is the business datum that outside G.703 interface transmits, G.703 interface need not business datum is processed in such cases, can directly be sent to and obtain grouped data report after the encapsulation decapsulation module is processed, follow-up processing flow is identical with the handling process of above-mentioned POTS interface, does not repeat them here; If access is that handling process in such cases is identical with the handling process of above-mentioned POTS interface, does not repeat them here by the outside business datum that transmits of interface or N * 64KB interface V.35.
G.703 interface for a plurality of serial connections, the business datum by the transmission of V5.2 interface that needs will access is first carried out shunt, then be sent to the G.703 interface of a plurality of serial connections and process, follow-up processing flow is identical with the handling process of above-mentioned POTS interface, does not repeat them here.
The PTN equipment that the utility model embodiment provides can be applied to the railway system, electric power system or subway system, can also be applied in other systems that need to process a large amount of low rate traffic data.PTN equipment can also realize that by the mode of professional integrated circuit board mixed insertion namely professional integrated circuit board is divided into low rate traffic integrated circuit board and high-rate service integrated circuit board, for such as G.703, V.35, the low rate traffic integrated circuit board such as V5.2, POTS, N*64K each other can mixed insertion; Each other can mixed insertion for the integrated circuit board such as the high-rate service such as GE, STM-N.Above-mentioned this design can be so that PTN equipment can be flexibly according to the concrete business demand networking of user.
The PTN equipment that the utility model embodiment provides, integrated a plurality of interface (the telephone service interfaces that can process the low rate traffic data on PTN equipment, G.703 the G.703 interface of interface and a plurality of serial connections), these interfaces are connected with the encapsulation decapsulation module respectively, and each encapsulation decapsulation module is connected with the QoS module again, the utility model embodiment is when work, these interfaces can for example directly receive G.703 interface, V.35 interface, the V5.2 interface, POTS, the low rate traffic data that N * 64KB interface or audio interface etc. send, and the corresponding encapsulation of process decapsulation module is converted to corresponding grouped data report, the QoS module that sends PTN equipment to is carried out subsequent treatment, so, need not to arrange separately protocol conversion device, just can realize the processing of the low rate traffic data of direct access has been reduced cost.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (6)
1. a PTN equipment comprises user node interface UNI and Network-Node Interface NNI, and described UNI is connected with protection module with the service quality QoS module respectively, it is characterized in that, also comprises: telephone service interface, the G.703 interface of interface and a plurality of serial connections G.703;
Described telephone service interface, described G.703 interface and the G.703 interface of a plurality of serial connections of being connected are connected with the encapsulation decapsulation module respectively, and each encapsulates decapsulation module and is connected with described QoS module.
2. PTN equipment as claimed in claim 1 is characterized in that, also comprises: toggle switch;
Described toggle switch is used for switching and selects to be connected with described G.703 interface, perhaps is connected with the G.703 interface of described a plurality of serial connections.
3. PTN equipment as claimed in claim 1 is characterized in that, also comprises: operation management maintain OAM module;
Each encapsulation decapsulation module is connected with described OAM module.
4. PTN equipment as claimed in claim 1 is characterized in that, each encapsulation decapsulation module is connected with described protection module.
5. PTN equipment as claimed in claim 1 is characterized in that, described telephone service interface is plain old telephone service POTS interface, common exchanging telephone network PSTN interface or Digital Telephone Network isdn interface.
6. PTN equipment as claimed in claim 1 or 2 is characterized in that, described G.703 interface is bnc interface or RJ45 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220435404.XU CN202713353U (en) | 2012-08-29 | 2012-08-29 | Packet transport network device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220435404.XU CN202713353U (en) | 2012-08-29 | 2012-08-29 | Packet transport network device |
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| CN202713353U true CN202713353U (en) | 2013-01-30 |
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| CN201220435404.XU Expired - Lifetime CN202713353U (en) | 2012-08-29 | 2012-08-29 | Packet transport network device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270264A (en) * | 2014-09-22 | 2015-01-07 | 烽火通信科技股份有限公司 | Protection system and method for connecting STM-1 in PTN device to link |
| CN105376088A (en) * | 2015-09-09 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | Method and system for implementing operator QoS model based on BroadCom SDK |
| CN106789637A (en) * | 2015-11-24 | 2017-05-31 | 中国移动通信集团公司 | A kind of path establishment method of cross-domain service intercommunication, controller and system |
| CN107332686A (en) * | 2017-05-23 | 2017-11-07 | 烽火通信科技股份有限公司 | A kind of method and system that qos feature is realized in SPTN equipment |
-
2012
- 2012-08-29 CN CN201220435404.XU patent/CN202713353U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270264A (en) * | 2014-09-22 | 2015-01-07 | 烽火通信科技股份有限公司 | Protection system and method for connecting STM-1 in PTN device to link |
| WO2016045538A1 (en) * | 2014-09-22 | 2016-03-31 | 烽火通信科技股份有限公司 | Stm-1 access link protection system and method in ptn device |
| CN104270264B (en) * | 2014-09-22 | 2017-12-29 | 烽火通信科技股份有限公司 | The protection system and method for the access link of STM 1 in PTN device |
| RU2660608C1 (en) * | 2014-09-22 | 2018-07-06 | Файберхоум Телекоммьюникейшн Текнолоджиз Ко., Лтд | System and method for protecting stm-1 access channel in ptn equipment |
| CN105376088A (en) * | 2015-09-09 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | Method and system for implementing operator QoS model based on BroadCom SDK |
| CN105376088B (en) * | 2015-09-09 | 2018-07-24 | 上海斐讯数据通信技术有限公司 | Operator's QoS model realization method and system based on BroadCom SDK |
| CN106789637A (en) * | 2015-11-24 | 2017-05-31 | 中国移动通信集团公司 | A kind of path establishment method of cross-domain service intercommunication, controller and system |
| CN106789637B (en) * | 2015-11-24 | 2020-02-04 | 中国移动通信集团公司 | Cross-domain service intercommunication path establishment method, controller and system |
| CN107332686A (en) * | 2017-05-23 | 2017-11-07 | 烽火通信科技股份有限公司 | A kind of method and system that qos feature is realized in SPTN equipment |
| CN107332686B (en) * | 2017-05-23 | 2019-08-06 | 烽火通信科技股份有限公司 | A kind of method and system for realizing qos feature in SPTN equipment |
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Granted publication date: 20130130 |