CN100550915C - The method of transfering control information of asynchronous mode reverse multiplex link - Google Patents
The method of transfering control information of asynchronous mode reverse multiplex link Download PDFInfo
- Publication number
- CN100550915C CN100550915C CNB2005100721025A CN200510072102A CN100550915C CN 100550915 C CN100550915 C CN 100550915C CN B2005100721025 A CNB2005100721025 A CN B2005100721025A CN 200510072102 A CN200510072102 A CN 200510072102A CN 100550915 C CN100550915 C CN 100550915C
- Authority
- CN
- China
- Prior art keywords
- control information
- ima
- link
- base station
- station equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5619—Network Node Interface, e.g. tandem connections, transit switching
- H04L2012/5624—Path aspects, e.g. path bundling
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention relates to a kind of method of transfering control information of asynchronous mode reverse multiplex link, this method mainly comprises: the control information that need transmit between network side that uses IMA (asynchronous transfer mode inverse multiplexing) link and base station equipment is filled into the idle time slot of physical layer frame; By the idle time slot of described physical layer frame, described control information is transmitted between network side that uses the IMA link and base station equipment.Utilize the method for the invention, a kind of means of automatic recovery connection can be provided between network side that uses the IMA link and base station side, can reduce the workload of network operation, reduce the network operation cost.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method of transfering control information of asynchronous mode reverse multiplex link.
Background technology
ATM (Asynchronous Transfer Mode, asynchronous transfer mode) is a kind of data transmission technology, it is based upon on the asynchronous time-division multiplex basis, be applicable to local area network (LAN) and wide area network, it has high-speed data transmission rate and supports communicating by letter of numerous species type such as sound, data, fax, real-time video, audio frequency and image, and ATM supports IMA (inverse multiplexing of ATM) technology.
IMA is the physical layer transmission agreement by a standard of ATM Forum (forum) proposition.IMA can be merged into many physical links a logical links, and the speed of the logical links that is merged is similar to each physical link speed sum, and the basic principle of IMA as shown in Figure 1.
The basic principle of IMA is: using the network transmitting terminal of atm technology, the high-speed information element flow point of the ATM layer that receives is being spread out on the physical link of a plurality of low speed and transmit; At the receiving terminal of this network, independently low speed cell flow merging of each that will receive again is reduced into a single high-speed information element stream again, is delivered to the ATM layer of receiving terminal then.It is wherein said that to share and merge all be to adopt the repeating query strategy.
In order in the network of existing application atm technology, to realize the IMA technology, " Inverse Multiplexing over ATM technical specification " defined a new sublayer on the basis of original B-ISDN (broadband integrated services digital network) Protocol REference Model, be the IMA sublayer, the application schematic diagram of IMA as shown in Figure 2.
As physical layer, the IMA sublayer is positioned between TC (transmission is assembled) sublayer and ATM layer of E1 (physical layer) IMA with E1." Inverse Multiplexing over ATM technical specification " also defined the modification to the TC sublayer, the target of IMA management information base.IMA carries out unified management with a plurality of E1 interfaces after bundling, enlarged the bandwidth applications of using the network of atm technology.
Because in the network application of reality, the agreement of low level is being carried high-level agreement, thus unusual if the agreement of low level occurs, then can not operate as normal than the high-level agreement of its high level.Because the IMA sublayer is higher than transmission convergence sublayer and physical medium sublayer, is lower than the ATM layer, therefore, just exist a kind of like this anomaly in the practical application of IMA: promptly transmission convergence sublayer and physical medium sublayer are all normal, and be unusual but the IMA sublayer occurs.At this moment, the physical connection of network is normal, but all customer data can't transmit.In described anomaly, the abnormality schematic diagram of IMA as shown in Figure 3.
3G (third generation communication system) wireless network is based on ATM exchange, has plenty of between the network equipment of 3G and the base station equipment that the mode that adopts IMA connects.If anomaly recited above occurs between the network equipment of the 3G that uses the IMA technology and base station equipment, network side can't be assigned any order to base station side, and base station equipment will be in " isolated island " state.In the prior art, be: adopt artificial mode, at network side with device reset is carried out at the base station side two ends or the IMA group resets to the solution of this anomaly.
The shortcoming of the solution of described prior art is: because in the network application of reality, network equipment and base station equipment have larger distance usually, even are between the different cities.Therefore, adopt artificial mode, carry out relatively difficulty of operation that device reset or IMA group resets at network side and base station side two ends, rebulid also difficulty relatively of the operation that is connected simultaneously at network side and base station side two ends, this will cause the maintenance workload of network very big.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of method of transfering control information of asynchronous mode reverse multiplex link, utilize the method for the invention, can reduce the workload of network operation, reduce the network operation cost.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method of transfering control information of asynchronous mode reverse multiplex link comprises:
A, the control information that need transmit between network side that uses asynchronous transfer mode inverse multiplexing IMA link and base station equipment are written as the byte command code, utilization has increased the byte command code and has issued drive software with the physical layer of processing capacity, described byte command code is filled into the idle time slot of physical layer frame;
B, the idle time slot by described physical layer frame transmit the described control information that has been written as the byte command code between network side that uses the IMA link and base station equipment.
The described control information that need transmit between network side that uses the IMA link and base station equipment is written as the byte command code, specifically comprises:
When the IMA link occurs fault, the control information of IMA link reset or the device reset control information that network equipment are issued to base station equipment are written as the byte command code.
The described control information that need transmit between network side that uses the IMA link and base station equipment is written as the byte command code, specifically comprises:
When the IMA link was working properly, the State Control message composition that need transmit between network side and base station equipment became the byte command code.
Described step B also comprises:
Utilize the described control information that between network side that uses the IMA link and base station equipment, transmits, between the network side of the use IMA link that breaks down and base station equipment, rebulid connection.
Described method is applicable to the IMA link of Fractional segmentation.
Described method is applicable to the ATM network of the IMA link that uses IMA or segmentation.
As seen from the above technical solution provided by the invention, the present invention compares with prior art, have following advantage: the present invention takes place under the unusual situation at IMA, between network side and base station side, transmit the IMA link control message by the idle time slot of E1, solved because the network side that IMA causes unusually is connected interruption and base station equipment consequent " isolated island " problem with base station equipment.The means that the present invention provides a kind of automatic recovery to connect between network side and base station side.Utilize the present invention, can reduce the workload of network operation, reduce the network operation cost.
Description of drawings
Fig. 1 is the basic principle figure of IMA;
Fig. 2 is the application schematic diagram of IMA;
Fig. 3 is the abnormality schematic diagram of IMA;
Fig. 4 is the frame assumption diagram of E1;
Fig. 5 is the basic principle figure of the method for the invention;
Fig. 6 is the concrete process chart of the method for the invention.
Embodiment
The invention provides a kind of method of transfering control information of asynchronous mode reverse multiplex link.Core of the present invention is: take place under the unusual situation at IMA, transmit the IMA link control message by the idle time slot of E1 between network side and base station side, rebulid with the base station side two ends at network side and be connected.
In order to describe the present invention better, we simply introduce earlier the frame structure of E1 system and E1.
The E1 system is a kind of physical layer interface commonly used, and the IMA function realizes in the atm network based on E1 usually.The E1 system is by the ITU-T of International Telecommunication Association (ITU Telecommunication Standardization Sector's door) suggestion, and G.703 its electric interfaces meets, and G.704 frame structure meets, and E1 is the physical layer interface of standard.It comprises 1 take-up TX and 1 hair line RX on physical connection, the code word of E1 itself contains clock information, does not need clock signal in addition.
The frame structure of E1 as shown in Figure 4, the E1 frame divides two kinds of odd-numbered frame and even frame, 0 time slot of E1 frame can not carry data message as synchronization slot.0 slot transmission synchronizing signal " 0011011 " of even frame, second of 0 time slot of odd-numbered frame is fixed as " 1 ", to distinguish with second " 0 " of even frame.
All the other time slot portability user data informations of E1 frame, adopt 16 slot transmission channel associated signallings in the CAS of E1 (channel associated signalling) the multi-frame form, 1～15 and 17～31 slot transmission data messages, CAS multiframe does not re-use substantially at present, but consideration for compatibility, when E1 is used for the UNI (User Network Interface) of atm network, use 1～15 and 17～31 slot transmission data messages, 16 time slots do not use as idle time slot yet.
When the unusual and normal situation of E1 layer in IMA sublayer appears in atm network, the ATM order or the data of upper-layer protocol can't be transmitted, but the E1 layer is normal, and the transmission of E1 frame also is normal, and just E1 frame 1～15 and the entrained user data information of 17～31 time slots are invalid.
The method of the invention just is based on the frame structure of E1 system recited above and E1, its basic principle figure as shown in Figure 5, its basic principle is:
When the unusual and normal situation of E1 layer in IMA sublayer appears in atm network, use device driver software directly to fill the 16th time slot of E1, at this moment, because the physical connection of E1 layer is normal, the transmission of E1 frame also is normal, and the equipment at network side and base station side two ends just can carry out certain information interaction by the 16th time slot of E1 so.Network equipment can be issued to the base station equipment that becomes " isolated island " with IMA reset command or device reset order by this time slot, the reset command that the base station equipment utilization receives, can rebulid and being connected of network volume equipment, thereby not need manually to carry out reset operation.With regard to for the terminal equipment that becomes " isolated island " provides an easy passway for escaping, also reduced the great number maintenance cost that the manual reset operation is brought simultaneously like this.
The concrete handling process of the method for the invention as shown in Figure 6.Comprise the steps:
Step 6-1, in the drive software of E1 layer, increase the byte command code and issue and processing capacity.
In the E1 layer drive software of the network side of atm network and base station equipment, increase E1 frame 16 time slot Data Receiving and sending functions, increase the byte command code and issue and the command code processing capacity.
Step 6-2, the control information that need transmit between network side and base station equipment are written as the byte command code.
The information of the byte of 16 time slot portabilities of E1, therefore, when the unusual and normal situation of E1 layer in IMA sublayer appearred in atm network, the control information that need transmit between network side and base station equipment was written as the byte command code.Reset or the device reset control information is written as the byte command code such as the IMA that network equipment is issued to base station equipment.
When IMA sublayer and E1 layer all are in normal operating conditions, also can transmit the work state information of IMA sublayer by 16 time slots of E1.Replenishing of control information during as IMA sublayer operate as normal can further strengthen the reliability of IMA function.At this moment, need to analyze the various state informations of IMA, extract the information of wishing concern, Unified coding becomes the byte command code.
Step 6-3, utilize described drive software, 16 time slots by the E1 layer transmit the byte command code of being write between network side and base station equipment.
Use the described byte command code that increased to issue 16 time slots of directly filling the E1 layer with the drive software of the E1 layer of processing capacity.
When IMA sublayer operation irregularity and E1 layer when working properly, by this time slot control information command codes such as IMA reset command or device reset order are transmitted between network side and base station equipment, rebulid connection between network side and the base station equipment thereby make;
When IMA sublayer and E1 layer all are in normal operating conditions, IMA sublayer operating state command code is transmitted between network side and base station equipment by this time slot.
The present invention can also be applied in this special IMA application mode of Fractional (segmentation) IMA, and ATM carrying application modes such as UNI and Fractional ATM.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (7)
1, a kind of method of transfering control information of asynchronous mode reverse multiplex link is characterized in that, comprising:
A, the control information that need transmit between network side that uses asynchronous transfer mode inverse multiplexing IMA link and base station equipment are written as the byte command code, utilization has increased the byte command code and has issued drive software with the physical layer of processing capacity, described byte command code is filled into the idle time slot of physical layer frame;
B, the idle time slot by described physical layer frame transmit the described control information that has been written as the byte command code between network side that uses the IMA link and base station equipment.
2, according to the method for the described transfering control information of asynchronous mode reverse multiplex link of claim 1, it is characterized in that, the described control information that need transmit between network side that uses the IMA link and base station equipment is written as the byte command code, specifically comprises:
When the IMA link occurs fault, the control information of IMA link reset or the device reset control information that network equipment are issued to base station equipment are written as the byte command code.
3, according to the method for the described transfering control information of asynchronous mode reverse multiplex link of claim 1, it is characterized in that, the described control information that need transmit between network side that uses the IMA link and base station equipment is written as the byte command code, specifically comprises:
When the IMA link was working properly, the State Control message composition that need transmit between network side and base station equipment became the byte command code.
According to the method for the described transfering control information of asynchronous mode reverse multiplex link of claim 2, it is characterized in that 4, described step B also comprises:
Utilize the described control information that between network side that uses the IMA link and base station equipment, transmits, between the network side of the use IMA link that breaks down and base station equipment, rebulid connection.
According to the method for the described transfering control information of asynchronous mode reverse multiplex link of claim 1, it is characterized in that 5, described idle time slot comprises: the 16th time slot of E1 frame.
According to the method for the described transfering control information of asynchronous mode reverse multiplex link of claim 1, it is characterized in that 6, described method is applicable to the IMA link of Fractional segmentation.
According to the method for claim 1 or 6 described transfering control information of asynchronous mode reverse multiplex link, it is characterized in that 7, described method is applicable to the ATM network of the IMA link that uses IMA or segmentation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100721025A CN100550915C (en) | 2005-05-24 | 2005-05-24 | The method of transfering control information of asynchronous mode reverse multiplex link |
| PCT/CN2006/001082 WO2006125390A1 (en) | 2005-05-24 | 2006-05-24 | A method and apparatus for transferring the control information over reverse multiplex link of asynchronous transfer mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100721025A CN100550915C (en) | 2005-05-24 | 2005-05-24 | The method of transfering control information of asynchronous mode reverse multiplex link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1859432A CN1859432A (en) | 2006-11-08 |
| CN100550915C true CN100550915C (en) | 2009-10-14 |
Family
ID=37298294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100721025A Expired - Fee Related CN100550915C (en) | 2005-05-24 | 2005-05-24 | The method of transfering control information of asynchronous mode reverse multiplex link |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100550915C (en) |
| WO (1) | WO2006125390A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790995B (en) * | 2014-12-26 | 2020-04-14 | 中国移动通信集团辽宁有限公司 | Automatic service switching method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001345787A (en) * | 2000-06-02 | 2001-12-14 | Hitachi Ltd | Method for switching communication channel |
| JP2002368783A (en) * | 2001-06-07 | 2002-12-20 | Mitsubishi Electric Corp | Atm inverse multiplexing and base station for mobile communication |
| US6707819B1 (en) * | 1998-12-18 | 2004-03-16 | At&T Corp. | Method and apparatus for the encapsulation of control information in a real-time data stream |
| CN1553671A (en) * | 2003-06-05 | 2004-12-08 | 深圳市中兴通讯股份有限公司南京分公 | Method for non-block user data transmission in reverse multiplexing process |
-
2005
- 2005-05-24 CN CNB2005100721025A patent/CN100550915C/en not_active Expired - Fee Related
-
2006
- 2006-05-24 WO PCT/CN2006/001082 patent/WO2006125390A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6707819B1 (en) * | 1998-12-18 | 2004-03-16 | At&T Corp. | Method and apparatus for the encapsulation of control information in a real-time data stream |
| JP2001345787A (en) * | 2000-06-02 | 2001-12-14 | Hitachi Ltd | Method for switching communication channel |
| JP2002368783A (en) * | 2001-06-07 | 2002-12-20 | Mitsubishi Electric Corp | Atm inverse multiplexing and base station for mobile communication |
| CN1553671A (en) * | 2003-06-05 | 2004-12-08 | 深圳市中兴通讯股份有限公司南京分公 | Method for non-block user data transmission in reverse multiplexing process |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006125390A1 (en) | 2006-11-30 |
| CN1859432A (en) | 2006-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU745753B2 (en) | System supporting variable bandwidth asynchronous transfer mode network access for wireline and wireless communications | |
| US6052371A (en) | System and method for the communication of operation and maintenance, administration and provisioning information over an asynchronous transfer mode network | |
| US5959996A (en) | System for interfacing numerous ISDN data connecting to a data network through the telephone network | |
| EP2348691A1 (en) | Service transmission method and device used for service transmission | |
| EP2056573A1 (en) | Integrated cut-in system and method and integrated cut-in module | |
| US6834038B1 (en) | Protection against master unit failure in remote network access multiplexing | |
| US6658006B1 (en) | System and method for communicating data using modified header bits to identify a port | |
| CN101394310B (en) | Apparatus and method for constructing management communication network and signaling communication network | |
| US20020159462A1 (en) | System and method for transmission of frame relay communications over a digital subscriber line equipped with asynchronous transfer mode components | |
| JPH11331191A (en) | Subscriber access device | |
| CN100550915C (en) | The method of transfering control information of asynchronous mode reverse multiplex link | |
| EP1615383B2 (en) | A digital subscriber loop terminal devices management system | |
| CN101789843A (en) | Method for implementing multi-line E1 binding and network bridge | |
| CN107995082A (en) | A kind of service card management method, main control card and distributed network gate | |
| JP2002101103A (en) | Base station modulator and demodulator, and atm cell transmission/reception method | |
| US20050220149A1 (en) | Method to divide upstream timeslots in a time division multiple access system, related line terminator and related network terminator | |
| CN100384177C (en) | A method of Ethernet transmission in a plurality of E1 channels | |
| US6577856B1 (en) | System and method for performing power management without losing data, connectivity or reachability | |
| KR100330197B1 (en) | Optic subscriber transmitting station and channel transmitting method thereof | |
| CN1100471C (en) | ATM communication systems with modular structure | |
| CN102696199B (en) | X digital subscriber line (xDSL) data transmission device and method | |
| KR100263384B1 (en) | Control method of bank control and maintenance unit in fiber loop carrier-curb system | |
| KR100317406B1 (en) | A Transceiver Unit of Central office end and Rmote terminal end for Asymmetric Digital Subscriber Line Systems | |
| KR100405848B1 (en) | Remote System Control Apparatus and Method of ATM Network | |
| KR100314354B1 (en) | A Basic Rate Interface Unit of Integrated Services Digital Network in Fiber Loop Carrier-Curb Systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20210524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |