CN1013467B - Operating method of wideband/multislot switching apparatus - Google Patents
Operating method of wideband/multislot switching apparatusInfo
- Publication number
- CN1013467B CN1013467B CN88100917A CN88100917A CN1013467B CN 1013467 B CN1013467 B CN 1013467B CN 88100917 A CN88100917 A CN 88100917A CN 88100917 A CN88100917 A CN 88100917A CN 1013467 B CN1013467 B CN 1013467B
- Authority
- CN
- China
- Prior art keywords
- service layer
- switch
- data
- circuit
- path
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A Wideband/Multislot Switching Arrangement A wideband/multislot switching arrangement is provided for use in a digital telecommunications exchange. A call handling device is provided which receives signalling information about a path connection, and which communicates with a switch interface to generate a single switch request. The switch interface includes a map record of each circuit connection controlled by the call handling device and generates multiple switch requests which are used to control a number of switches to make the path connections.
Description
The present invention relates to a kind of is the method for operation that is used for the operating method of wideband/multislot switching apparatus of the digital remote communication switchboard such as X system convertor.
Broadband/multigap conversation is that a large amount of time slots are through passing through network after exchanging together, to be provided at the connection of the different bandwidth under the normal transmission.Usually, this switch is linked to be the path of per second 64 kilobits, but this method is applicable to the exchange of any scale or any kind.
All time slots all are to same entity wiring (pulse-code modulation PCM or equivalence) by described switch transition connecting aspect the conversation of broadband importantly.For example, deliver to same switch even there is two-way PCM to connect, also essential will the connection by different PCM of all time slots sends.This two paths must exchange with identical path delay.
This method is applicable to that any bandwidth is until the highest sync rates by described switch terminating.
The current method of considering the regulation of broadband service is based on switch that reinforcement signals to inside and the switch that the user is signaled, and allows this switch carry out the efficient search that has to all paths of may stack up meaning required business then.
This method is complicated and for realizing that it will relate to a large amount of development and researches.Also there is some subject matter at network range and management aspect, therefore, by utilizing the whole PCM several time slots in connecting, make the described network of common conversation can be, and can prevent that several broadbands from conversing and used up all available bandwidths and stoped the described problem of common conversation as the broadband conversation.
Therefore, an object of the present invention is to a kind of method of operation that has overcome the operating method of wideband/multislot switching apparatus of all problems above-mentioned is provided.
According to the inventive method, be provided with a operating method of wideband/multislot switching apparatus for the use of digital-telecommunication switch, wherein, disposed one and be connected to a switch interface in order to control the conversation processor of described switch, this switch interface is included in the map record that each circuit connects in the digital remote communications exchange, with a circuit service layer, in order to discern the service layer that its part is a known circuit, this method may further comprise the steps:
-make described conversation processor receive the information of connection aspect, relevant path;
-make described conversation processor produce the request of singly connecing and this is singly connect request to notify described switch interface;
-make described switch interface go to produce the request of connecing more and should connect more to ask to pass to described switch, make some switches of described path connection with control according to described map record.
Refer now to following accompanying drawing and describe one embodiment of the present of invention, in the accompanying drawing:
Fig. 1 shows the calcspar of an operating method of wideband/multislot switching apparatus; With
Fig. 2 represents an example of data chainning.
With reference to figure 1, a kind of traditional conversation processor CH is used to handle conversation, passes the route of described network and give described digital switch with exchange instruction for they are selected.Usually this processor CH links to each other the A side with the B side, and receives the signal message SA in the join domain, SB.The interface that leads to described switch is in software layer, its not direct control hardware.
This conversation processor is the standard cell of the SPC telephone exchange of a stored routine control.This processor receives the signal of sending out from the various signal source relevant with telephone relation, removes to determine the routing of conversation then with dial numeral.This conversation processor can have the entrance of some described numerals, thereby makes same group of numeral because of having different connotations from the user with coming automatic network.This conversation processor is determined is not that special circuit/user's communication is exactly to be formed and selected the route of an idle circuit by many circuit.
This conversation processor is determined the needs of switching path, and for accomplishing this point, this processor will go to discern a path that needs connection by discerning its two ends.
The exchange literal sense of giving described exchange processing is:
A. assignment-set up for all paths of conversing and using
B.AB takes out stitches-removes one for all paths of conversing and using
C. all take out stitches-remove to a certain whole connections that only are used for the known circuit under the malfunction.
D. survey-be mainly used under the malfunction,, ask another terminal of a paths according to-known point.
E. change the used change transmission direction of some conversation of transmission-confession.
Switch interface SI keeps a record REC to each circuit of being discerned by described conversation processor CH, to show the COS of this circuit, for example common (1 time slot), 6 time slots etc., and the suitable mapping of any each switch under its control.Then, this switch is handled by described conversation and (is converted to and connects raw requests MR more some as path A being connected to B or removing certain paths singly meeting request SWR, so that when keeping the integrality of time slot, by means or an actual switch PS each respective paths is coupled together: promptly as this service, A links B, A ' links B ', and A " links B " etc.Described record REC takes certain mapping (A to A, A ' is to A " and B to B, B ' is to B " etc.) form of each circuit.
The listing in of all separations that participates in digit translation a little is used for every broadband service of being supported.This means:, have only those circuit that can transmit the same services level to introduce the stomion addressing according to these for each level.
All are the man machine interfaces by the used chart of the switch that relates to described broadband service, are for give the renewable MMI of flexibility aspect the broadband connection in definition.
Owing to strengthened described function of exchange, made existing standard exchange each path that request interface will be changed each broadband pathway and 64,000 ratio/seconds according to the conversation processing capacity.It is in broadband pathway of exchange that this conversation processing will can not differentiated it.
From the data that kept between commutation period can be the indication of a broadband pathway on all four the derivation simultaneously this path of all time slots in each terminal.
Concerning all operations, when no matter communicating by letter when inter-process conversation and outside signalling or with Fabric Interface, described conversation processor CH is with a circuit (being generally the former).
The distribution of the broadband service that specific PCM is connected is set by a service mark.
This just provides broadband service for the users of common Exchange Service and private wire circuit and VLL network.
The new improvement of this respect is the mapping of being carried out to switched circuit (a plurality of) from described conversation treatment circuit.In other words, it is with a kind of new combination, and a kind of of existing equipment reused.
Data
For keeping the required data area of described data to have 4, be defined as under the condition of broadband service, first data area is by conversion continually.Just just its excess-three of conversion is regional when setting up all new service layers.
Type selecting to required service realizes by circuit service layer (CSL), by described switch each circuit is all carried out this selection and discerns all service layers.In case recognized certain borad-band path, promptly utilize its excess-three number to carry out selection to actual time slot according to the zone, these three data are bandwidth, subscript and described time slot data itself in time slot data.
It is possible that more than one service layer has same band.
Circuit service layer (CSL) by C and the given S of service layer of P institute indexing
This data area keeps the service layer of each circuit of described switch.
These data are to add target by PCM number and PCM channel number, to specify this service layer.Service layer 0 specializes in the usefulness of service 64,000 ratio/seconds, and other service layers can some different modes, limits with bigger bandwidth.
Service layer's bandwidth (SLB) by the given N of S time slot several years institute's indexing
This data area keeps can be used for the number of channel of 64,000 ratio/seconds of a circuit in each service layer.
Remainder data then is for up to the usefulness of the service ranges of 2,000,000 ratio/seconds.Then need different data for more senior connection, to work to whole pulse-code modulation rather than to all channels.This also can mean: when needing to the access of other switches.
Come service layer's subscript (SLI) of indexing by the initial subscript I in S and the given service layer of the C data
This data field makes the resolution of establishing all service layers have flexibility.This is a two-dimensional array subscript in service layer's data.
This is to add target by this service layer with the channel that recognizes.First project in these service layer's data of this data identification is used for all actual time slot in this path with identification.This N time slot will be initial with N continuous item with this subscript sign.
To target service layer data (SLD) under N given each time slot of continuous item
This data area makes setting up can have flexibility aspect service layer definite, and it discerns the actual channel in each service layer.These channels should be according to the order of sequence, and the reason of setting up these data by this way is the data for this exchange request of streamline ground access.
When the conversion request picked out as certain service of N time slot, then begin N continuous item of these data carried out access from the given project of described initial subscript.
The N of these a data project is each addressable circuits needed of each service layer.For example, concerning 6 time slots (384,000 ratio/second) service, 5 collection that 6 Item Sets of needs are synthetic.For a kind of service of 30 time slots will need 30 projects and concerning 31 time slots services 31 projects of needs.
Example with reference to a data communication shown in Figure 2.
It is described data of access how that Fig. 2 is expressed as the time slot that obtains a service.Just must carry out the access of data for setting up a paths, and then connect corresponding time slot from the SLD data to each terminal in this path.
PCMP is gone up as the circuit of channel C, and the S of service layer with N time slot is found.The following I that is designated as of these data.
The performance of exchange request
When Fabric Interface receives an exchange request from described conversation processor, this service layer's bandwidth around each end of this path of this interface checking, this action of being taked will be depended on this service layer.If professional service layer is zero as 64,000 ratio/seconds, then will take described traditional exchange request action.
If described each terminal has different bandwidth, then should report certain fault.Alternative dispensing means is the minimum common bandwidth that this system can use this two terminal.
If two ends have identical service layer's bandwidth, then then carry out some action for described exchange request (primatives).
Usually the response that conversation is handled should reflect from the heaviest part in all responses of switch hardware, under part connection situation, and should be from this uncompleted conversation of described switch write off.
Assignment AB
This switch is intended to establish a road warp between an A and the B at 2, and it may require only to transmit along a direction.
The data field that the interface utilization of this switch has above illustrated, then by connecting corresponding to right by the channel of N bandwidth item recognition, connect the corresponding switching path on this switch, determine each time slot on each end of this path, the described number of channel will obtain according to the SLD data.These paths must be set up with the time slot integrality.
Time slot determine to depend on above-cited data.Be to obtain time slot identification of each end of this path, must be to twice of these data interrogation.
If arbitrary path is not switched on, then the answer to the user must reflect this fault.
AB takes out stitches
This switch is intended to remove a path of having discerned from A to B.Same quadrat method during with above-mentioned assignment obtains the bandwidth and the channel data at two ends.
This switch interface is under the channel identification situation that realizes at every turn taking out stitches according to the SLD data, and the conversation of taking out stitches of sending by the switch of giving each N path is determined by the time slot in each path of this switch and split off all associated pathway.
All take out stitches
This switch is intended to remove to certain any all connections on this switch.In the case, to have only an end be given described all paths.
This switch interface is determined all time slots of this given side and all connections of removing each time slot.
Follow the tracks of A
This switch is intended to seek one one path that end is given under the multipath situation, from that, every paths is needed a request.
This switch interface is found out the bandwidth of this end, so obtain a single-track to switch hardware, this makes this path pass through this switch, because this tracking results, and the other end that can given described path.But, when depending on the hardware check that provides a paths, then should pass through an explanation curve in each path of this switch by given other as if this track.
If arbitrary time slot is out of order or does not continue, then the answer to the conversation processor will reflect this point.
The change transmission direction
This is for the transmission means of a paths is become two-way from one the tunnel, or a unidirectional path is reverse, or the two-way transmission only is kept to one the tunnel.
This switch interface is treated this task in the mode that is very similar to described assignment.
Improvement business as described below can be proposed in aforesaid basic service expansion.
User's control of bandwidth
This business makes users be willing to look by their use and handles the service mark of all service layers of expression.This is similar to the control of other assistant service projects and will improves the flexibility of access.
For example, the user can change over the circuit that six time slots are formed on demand as with six independent circuit.
Concerning the flexibility of depending on all service layers that handle by this exchange, there is certain limitation.
Discrete switch
Controllable is not a switch but discrete some switches, and can not influence the communication process that has only switch interface, and this point can be used to control a large amount of discrete switches, (for example, can exchange 140,000,000 ratio/second link).
One-way passage
By allowing the supplementary service layer, then can be provided at the calling party to the callee or have only the multiple business of a paths between from callee to calling party as the one way traffic of each bandwidth.
So, by making two conversations that separate of go path and backhaul pathways, using different bandwidth, the user just can obtain asymmetric communication.This can not influence this conversation and handle.
When the present invention and an X system convertor logotype, for example do not have influence on the network signalling and a kind of strong broadband/multigap business can be provided owing to a spot of variation.
Above-mentioned explanation is not for limiting the scope of the invention, and for example, sets up line separately for providing dial business with required bandwidth can add some.
Also can adopt the present invention and need not to be limited to traditional digital switch the exchange of other types.
A kind of mode of the present invention that realizes has more than been described.When it utilizes same switch, only comprise the connection of maximum 2,000,000 ratio/seconds, concerning high order connects, then require some additional datas on the whole PCM for operating in.In addition, if this method expands to when driving a plurality of switch, then must growth data for preserving this information.
Claims (5)
1, a kind of method of operation of operating method of wideband/multislot switching apparatus, described device comprises that one is connected to the conversation processor of a switch interface in order to the control switch, this switch interface is included in the map record that each circuit connects in the digital remote communications exchange, be the service layer of certain known circuit with a circuit service layer in order to discern its part, this method may further comprise the steps:
-make described conversation processor receive the information of connection aspect, relevant path;
-make described conversation processor produce the request of singly connecing and this is singly connect request to pass to described switch interface;
-make described switch interface go to produce the request of connecing more and should connect more to ask to pass to described switch the some switches that described path are connected with control according to described map record.
2, method of operation as claimed in claim 1, wherein the data about described circuit service layer are to be the type that store and that be used to discern described service layer and required service of each circuit on the described switch.
3, method of operation as claimed in claim 2, wherein be stored about the data of service layer's bandwidth and be used to represent on the circuit that can be used on each service layer 64,000 ratio/seconds to 2,000,000 ratio/second channel number.
4, method of operation according to claim 2, wherein the subscript data of relevant service layer are stored and are used to discern first entry data of service layer, to discern the actual time slot in described path.
5, method of operation according to claim 4, wherein relevant with service layer data data are stored and are used to discern the actual channel of each service layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878703649A GB8703649D0 (en) | 1987-02-17 | 1987-02-17 | Wideband/multislot switching arrangement |
| GB8703649 | 1987-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN88100917A CN88100917A (en) | 1988-09-07 |
| CN1013467B true CN1013467B (en) | 1991-08-07 |
Family
ID=10612438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88100917A Expired CN1013467B (en) | 1987-02-17 | 1988-02-17 | Operating method of wideband/multislot switching apparatus |
Country Status (5)
| Country | Link |
|---|---|
| KR (1) | KR880010593A (en) |
| CN (1) | CN1013467B (en) |
| DK (1) | DK80488A (en) |
| FI (1) | FI880727A (en) |
| GB (1) | GB8703649D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067965C (en) * | 1996-07-25 | 2001-07-04 | 格拉沃贝尔公司 | Metal-coated substrates |
-
1987
- 1987-02-17 GB GB878703649A patent/GB8703649D0/en active Pending
-
1988
- 1988-02-15 KR KR1019880001576A patent/KR880010593A/en not_active Application Discontinuation
- 1988-02-16 FI FI880727A patent/FI880727A/en not_active Application Discontinuation
- 1988-02-16 DK DK080488A patent/DK80488A/en not_active Application Discontinuation
- 1988-02-17 CN CN88100917A patent/CN1013467B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067965C (en) * | 1996-07-25 | 2001-07-04 | 格拉沃贝尔公司 | Metal-coated substrates |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8703649D0 (en) | 1987-03-25 |
| KR880010593A (en) | 1988-10-10 |
| FI880727A0 (en) | 1988-02-16 |
| DK80488D0 (en) | 1988-02-16 |
| DK80488A (en) | 1988-08-18 |
| FI880727A (en) | 1988-08-18 |
| CN88100917A (en) | 1988-09-07 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: THE PLESSEY CO. PLC. (GB) VICARAGE LANE, ILFORD, ESSEX, ENGLAND TO: GEC PRESS REMOTE DISTANCE TELECOMMUNICATIONS CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: England Coventry New Century Park No. 53 mailbox Patentee after: The Plessey Co. Plc Address before: Essex, England, Karachi, Essex, England Patentee before: The Plessey Co., PLC. |
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| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |