CN100461803C - Telephnoe traffic protection method based on E1 - Google Patents
Telephnoe traffic protection method based on E1 Download PDFInfo
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- CN100461803C CN100461803C CNB2005100851777A CN200510085177A CN100461803C CN 100461803 C CN100461803 C CN 100461803C CN B2005100851777 A CNB2005100851777 A CN B2005100851777A CN 200510085177 A CN200510085177 A CN 200510085177A CN 100461803 C CN100461803 C CN 100461803C
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Abstract
This invention discloses a traffic protection method based on E1 circuit, which designs multiple E1 links between the devices butt jointed by E1 including: 1, when a testing an abnormal E1 circuit, the system informs the service process module, 2, which searches for time slot cluster occupied by traffic on the abnormal E1 circuit and finds if there are normal idle E1 circuit and finds if there are normal idle E1 circuits between the butt-jointed devices, if not, it finishes the steps, if so, it enters into step 3, 3, the service process module transfers the abnormal traffic on E1 circuit to normal idle E1 circuit and informs the butt-joint device to finish the re-connection and also finishes re-connection itself.
Description
Technical field
The present invention relates in a kind of communication system traffic guard method based on the E1 circuit; relate in particular to a kind of PHS (Personal Handphone System; personal handyphone system), GSM (Global System for Mobilecommunication; global system for mobile communications), in fixed line, the narrowband CDMA systems such as (Code Division MultipleAccess, code division multiple accesss) based on the traffic guard method of E1 circuit.
Background technology
In PHS in communication field, GSM, fixed line, the narrowband CDMA, E1 (No. 1 standard of european telecommunication) is all adopted in transmission, and each talk business all is to continue to finish on the time slot of the 64Kbps of E1.About E1, clearly regulation is arranged in the committee of International Telecommunications Union the 703rd file (ITUG.703), an E1 is the circuit of 2.048M, with PCM (Pulse CodeModulation, pulse code modulation) coding; The frame length of E1 is 256 bit, is divided into 32 time slots, and a time slot is 8 bit; Per second has the frame of 8k E1 by interface, i.e. 8K * 256=2048kbps; Each time slot accounts for 8bit in the E1 frame, 8 * 8k=64k promptly contains 32 64K among an E1.As shown in Figure 1, in the E1 channel, 8bit forms a time slot, and (TS timeslot), has formed a frame by 32 time slots, and 16 frames are formed a multi-frame.In a frame, TS0 is mainly used in and transmits frame alignment signal, cyclic redundancy check (CRC) and remote alarm indication, TS16 mainly transmits channel associated signalling, multiframe alignment signal and the indication of multi-frame remote alarm, and TS1 to TS15 and TS17 to TS31 totally 30 time slots transmit information such as speech or data.
The protection that do not continue in traffic of traditional communication apparatus, when transmitting under the situations such as (E1 line) fault, cut-out, the business of conversing on this transmission channel has also just been interrupted.During same in addition computer room construction newly added equipment, also need the E1 transmission, when the transmission (E1) of existing equipment has when unnecessary, consider sometimes will be unnecessary E1 insert in the newly added equipment, and, also be to be equivalent to the transmission interruption for original operating equipment.
When transmission needs to interrupt, perhaps during transmission fault, can produce following problem:
At first, E1 interrupts directly causing the interruption of the business conversed, brings serious loss and negative effect for user, operator;
Secondly, when diverting or safeguard the existing device transmission, the engineering staff often is placed on call volume to such construction and carries out less night, has brought great inconvenience and increased maintenance cost for engineering staff's construction.
Summary of the invention
At above-mentioned existing, the purpose of this invention is to provide a kind of traffic guard method that can protect traffic automatically, improve the traffic quality based on the E1 circuit based on existing problem and shortage in the communication system traffic of E1 circuit.
The present invention is achieved in that a kind of traffic guard method based on the E1 circuit, the E1 circuit that the equipment room setting by E1 butt joint is at least two, and this method may further comprise the steps:
When (1) system detects unusual E1 circuit, the informing business processing module;
(2) described Service Processing Module is searched for the time slot set that the traffic on the described unusual E1 circuit takies, and searches between the service of connection devices of this unusual E1 circuit whether the E1 circuit of normal free time is arranged, and step finishes if do not have then, then enters step (3) if having;
(3) described Service Processing Module is transferred to the traffic on the described unusual E1 circuit on the E1 circuit of described normal free time, and notifies described the service of connection devices to finish again and continue, and self also finishes again simultaneously and continues.
Use under the original environment division transmission situations such as (unnecessary E1 are arranged) at part transmission (E1 line) fault, cut-out or newly added equipment; the present invention can implement protection, shift the traffic on the unusual E1 circuit; can not interrupt the original traffic of conversing, make that newly added equipment can be open-minded smoothly.The present invention realizes simply, can effectively ensure the speech quality of systems such as PHS, GSM, fixed line, narrowband CDMA.
Description of drawings
Fig. 1 is the structural representation of E1 frame;
Fig. 2 is the structural representation of the service of connection devices of the present invention;
Fig. 3 is the structural representation of E1 fault of the present invention;
Fig. 4 is the structural representation that the present invention enables protection E1 circuit.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 2,3,4, the E1 circuit that the equipment room setting of the present invention by E1 butt joint is at least two, this is to implement a necessary condition of the present invention.Thick line represents to have traffic to take time slot among Fig. 2, and fine rule is represented idle E1; Empty thick line part E1 interrupts among Fig. 3; Fig. 4 represents that the traffic that interrupts transferred on the fine line.For guaranteeing that the traffic between the service of connection devices takies minimum E1 circuit, when Service Processing Module distributes the traffic time slot on the E1 circuit, preferentially with traffic distribution extremely less than the E1 circuit.Communication system of the present invention has the ability that monitoring E1 breaks down, and monitors each E1 circuit in real time.As shown in Figure 3, detect certain E1 fault, cut-out etc. can not bearer service the time, notice corresponding service processing module when system; Service Processing Module is searched for the time slot set that the traffic on this unusual E1 circuit takies, and search the E1 the circuit whether normal free time is arranged between the service of connection devices of this unusual E1 circuit, if not having then, step finishes, if the traffic on will this unusual E1 circuit is arranged then to be transferred on the E1 circuit of the normal free time that finds, and notify described the service of connection devices to finish again and continue, self also finish again simultaneously and continue, as shown in Figure 4.If normal idle E1 circuit is less than unusual E1 circuit quantity, then the traffic on the unusual E1 circuit is transferred on the normal E1 circuit as much as possible.Establish signalling path on the E1 circuit of the present invention, as Signaling System Number 7 passage etc.If the user is hung up traffic voluntarily, then the present invention does not continue to this traffic in the follow-up call process.
Shown in Fig. 2,3,4, suppose to have between illustrated the service of connection devices 10 E1 to connect, and normal operation, the traffic that is in operation takies therein 5 of time slot allocation, and 30 * 5=150 user arranged, and other 5 E1 free time.
The some time etching system monitors 5 E1 generation transmission interruptions that traffic takies, Service Processing Module obtains 5 e1 resources of the generation transmission interruption of notifications, Service Processing Module takes place to transmit at these 5 and searches the time slot set that traffic takies on the E1 that interrupts, and supposing all to take is 150.Service Processing Module is sought the time slot of the E1 do not break down, finds 5 remaining idle E1, has the traffic on the E1 line that traffic takies to transfer on other 5 E1 lines (idle time slot) fault that occurs, cut-out 5.
Service Processing Module is notified continuing again of the service of connection devices simultaneously, and notice is once notified and finished 150 in batches.Self also finishes again and continues.If the traffic that the user is hung up voluntarily takes place, processing does not continue in the handshaking procedure.
Those skilled in the art be when can understanding, can be according to actual needs and experience E1 number of lines between the service of connection devices is set.When traffic E1 fault occurring, the present invention can finish traffic as far as possible and shift, so that the user of traffic lost minimizes.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those skilled in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (5)
1. the traffic guard method based on the E1 circuit is characterized in that, the E1 circuit that the equipment room setting by E1 butt joint is at least two, and this method may further comprise the steps:
When (1) system detects unusual E1 circuit, the informing business processing module;
(2) described Service Processing Module is searched for the time slot set that the traffic on the described unusual E1 circuit takies, and searches between the service of connection devices of this unusual E1 circuit whether the E1 circuit of normal free time is arranged, and step finishes if do not have then, then enters step (3) if having;
(3) described Service Processing Module is transferred to the traffic on the described unusual E1 circuit on the E1 circuit of described normal free time, and notifies described the service of connection devices to finish again and continue, and self also finishes again simultaneously and continues.
2. the traffic guard method based on the E1 circuit according to claim 1 is characterized in that, when described Service Processing Module distributes the traffic time slot on the E1 circuit, at first search less than the E1 circuit, guarantee that promptly the traffic between the service of connection devices takies minimum E1 circuit.
3. the traffic guard method based on the E1 circuit according to claim 1 and 2 is characterized in that, hangs up traffic voluntarily as if the user in the described follow-up call process, then not to this follow-up call.
4. the traffic guard method based on the E1 circuit according to claim 1 and 2 is characterized in that, establishes signalling path on the described E1 circuit.
5. the traffic guard method based on the E1 circuit according to claim 4 is characterized in that described signalling path is the Signaling System Number 7 passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100851777A CN100461803C (en) | 2005-07-25 | 2005-07-25 | Telephnoe traffic protection method based on E1 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100851777A CN100461803C (en) | 2005-07-25 | 2005-07-25 | Telephnoe traffic protection method based on E1 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1719848A CN1719848A (en) | 2006-01-11 |
| CN100461803C true CN100461803C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100851777A Expired - Fee Related CN100461803C (en) | 2005-07-25 | 2005-07-25 | Telephnoe traffic protection method based on E1 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5511064A (en) * | 1993-01-19 | 1996-04-23 | Electronics And Telecommunications Research Institute | Speech path switching control apparatus and method for making maintenance of speech possible upon occurrence of fault in echo cancellation |
| JPH11112389A (en) * | 1997-10-08 | 1999-04-23 | Fujitsu Ltd | Switching system for line without hit and transmission device |
| CN1512675A (en) * | 2002-12-31 | 2004-07-14 | 东方通信科技发展有限公司 | Conversion method for main and spare communication channels |
| CN1547330A (en) * | 2003-12-01 | 2004-11-17 | 中兴通讯股份有限公司 | A method for multi-port multi-link communication network backup control and apparatus therefor |
| CN1558638A (en) * | 2004-01-18 | 2004-12-29 | 中兴通讯股份有限公司 | An inter-processor communication method based on message |
-
2005
- 2005-07-25 CN CNB2005100851777A patent/CN100461803C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5511064A (en) * | 1993-01-19 | 1996-04-23 | Electronics And Telecommunications Research Institute | Speech path switching control apparatus and method for making maintenance of speech possible upon occurrence of fault in echo cancellation |
| JPH11112389A (en) * | 1997-10-08 | 1999-04-23 | Fujitsu Ltd | Switching system for line without hit and transmission device |
| CN1512675A (en) * | 2002-12-31 | 2004-07-14 | 东方通信科技发展有限公司 | Conversion method for main and spare communication channels |
| CN1547330A (en) * | 2003-12-01 | 2004-11-17 | 中兴通讯股份有限公司 | A method for multi-port multi-link communication network backup control and apparatus therefor |
| CN1558638A (en) * | 2004-01-18 | 2004-12-29 | 中兴通讯股份有限公司 | An inter-processor communication method based on message |
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| Publication number | Publication date |
|---|---|
| CN1719848A (en) | 2006-01-11 |
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